200 free questions on Environment & Biodiversity for UPSC, State PSC, SSC and RRB exams. Click an option to instantly check your answer and read the explanation.
Which gas is primarily responsible for the greenhouse effect?
Explanation: Carbon dioxide is the primary greenhouse gas responsible for trapping heat and driving the greenhouse effect.
QUESTION 2 OF 200
The Kaziranga National Park, famous for the one-horned rhinoceros, is located in which state?
Explanation: Kaziranga National Park, home to the one-horned rhinoceros, is located in Assam.
QUESTION 3 OF 200
Which layer of the atmosphere protects the Earth from harmful ultraviolet radiation?
Explanation: The stratosphere contains the ozone layer, which absorbs and blocks most harmful ultraviolet radiation.
QUESTION 4 OF 200
The term "biodiversity hotspot" refers to a region that is:
Explanation: A biodiversity hotspot is a region rich in unique species that is also facing significant threat of habitat loss.
QUESTION 5 OF 200
Project Tiger was launched in India in which year?
Explanation: Project Tiger, India's flagship tiger conservation initiative, was launched in 1973.
QUESTION 6 OF 200
Which of the following is a greenhouse gas apart from carbon dioxide?
Explanation: Methane is a potent greenhouse gas released from sources like agriculture, landfills and livestock.
QUESTION 7 OF 200
The Western Ghats and Sri Lanka together form one of the world's recognized:
Explanation: The Western Ghats and Sri Lanka together form one of the world's recognized biodiversity hotspots.
QUESTION 8 OF 200
Which international agreement aims to limit global warming to well below 2°C?
Explanation: The Paris Agreement (2015) aims to limit global warming to well below 2°C above pre-industrial levels.
QUESTION 9 OF 200
The Sundarbans, home to the Bengal tiger, is a delta formed by which rivers?
Explanation: The Sundarbans delta, habitat of the Bengal tiger, is formed by the Ganga and Brahmaputra rivers.
QUESTION 10 OF 200
The Montreal Protocol is primarily concerned with:
Explanation: The Montreal Protocol (1987) is an international treaty aimed at protecting the ozone layer by phasing out ozone-depleting substances.
QUESTION 11 OF 200
Which Indian national park is famous for being the habitat of the Asiatic lion?
Explanation: Gir National Park in Gujarat is the only natural habitat of the Asiatic lion.
QUESTION 12 OF 200
The Convention on Biological Diversity was signed at the Earth Summit held in which city in 1992?
Explanation: The Convention on Biological Diversity was signed at the Rio Earth Summit in 1992.
QUESTION 13 OF 200
Which of these is NOT a greenhouse gas?
Explanation: Nitrogen makes up most of the atmosphere but is not a greenhouse gas since it doesn't trap heat.
QUESTION 14 OF 200
The Chipko Movement, a grassroots environmental movement in India, primarily focused on:
Explanation: The Chipko Movement was a grassroots movement in India where villagers hugged trees to prevent deforestation.
QUESTION 15 OF 200
Ramsar sites are internationally recognized for the conservation of:
Explanation: Ramsar sites are wetlands recognized internationally for their ecological importance under the Ramsar Convention.
QUESTION 16 OF 200
The Bishnoi community of Rajasthan is historically known for:
Explanation: The Bishnoi community of Rajasthan is renowned for its historic commitment to protecting wildlife and trees.
QUESTION 17 OF 200
Which Indian institution is the apex body for pollution control at the national level?
Explanation: The Central Pollution Control Board (CPCB) is India's apex body for monitoring and controlling pollution.
QUESTION 18 OF 200
The term "carbon footprint" refers to:
Explanation: Carbon footprint refers to the total greenhouse gas emissions caused directly or indirectly by an individual or entity.
QUESTION 19 OF 200
Which of the following is considered a renewable source of energy?
Explanation: Solar energy is a renewable resource since it is continuously replenished by the sun.
QUESTION 20 OF 200
The Nagoya Protocol is related to:
Explanation: The Nagoya Protocol governs access to genetic resources and the fair sharing of benefits from their use.
QUESTION 21 OF 200
The Kyoto Protocol, an international treaty on climate change, was adopted in which year?
Explanation: The Kyoto Protocol, committing countries to greenhouse gas reduction targets, was adopted in 1997.
QUESTION 22 OF 200
The Paris Agreement, a landmark climate accord, was adopted at COP21 in which year?
Explanation: The Paris Agreement, a landmark global climate accord, was adopted at COP21 in 2015.
QUESTION 23 OF 200
The Paris Agreement aims to limit global average temperature rise to well below what threshold above pre-industrial levels?
Explanation: The Paris Agreement's core goal is limiting temperature rise to well below 2°C, with efforts to cap it at 1.5°C.
QUESTION 24 OF 200
The Montreal Protocol, aimed at protecting the ozone layer, primarily targets the phase-out of:
Explanation: The Montreal Protocol specifically targets the phase-out of ozone-depleting substances such as CFCs.
QUESTION 25 OF 200
The Montreal Protocol was signed in which year?
Explanation: The Montreal Protocol on ozone-depleting substances was signed in 1987.
QUESTION 26 OF 200
The Stockholm Conference, the first major international conference on the environment, was held in which year?
Explanation: The 1972 Stockholm Conference was the first major international conference dedicated to environmental issues.
QUESTION 27 OF 200
The Earth Summit (UN Conference on Environment and Development) was held in Rio de Janeiro in which year?
Explanation: The Rio Earth Summit, formally the UN Conference on Environment and Development, was held in 1992.
QUESTION 28 OF 200
The Rio Earth Summit (1992) led to the adoption of important documents including Agenda 21 and the:
Explanation: The 1992 Rio Earth Summit produced Agenda 21 and the UN Framework Convention on Climate Change (UNFCCC).
QUESTION 29 OF 200
The Convention on Biological Diversity (CBD) was opened for signature at which conference?
Explanation: The Convention on Biological Diversity (CBD) was opened for signature at the 1992 Rio Earth Summit.
QUESTION 30 OF 200
The Ramsar Convention, an international treaty for the conservation of wetlands, was signed in which city?
Explanation: The Ramsar Convention on wetland conservation was signed in the city of Ramsar, Iran.
QUESTION 31 OF 200
The Ramsar Convention was adopted in which year?
Explanation: The Ramsar Convention for wetland protection was adopted in 1971.
QUESTION 32 OF 200
CITES (Convention on International Trade in Endangered Species) regulates international trade in:
Explanation: CITES regulates and restricts international trade in wild animals and plants to prevent their overexploitation.
QUESTION 33 OF 200
The Basel Convention primarily deals with the control of transboundary movements of:
Explanation: The Basel Convention controls the transboundary movement and disposal of hazardous wastes.
QUESTION 34 OF 200
The Convention on Migratory Species (CMS), also known as the Bonn Convention, aims to conserve:
Explanation: The Bonn Convention (Convention on Migratory Species) works to conserve migratory wild animal species and their habitats.
QUESTION 35 OF 200
The IPCC (Intergovernmental Panel on Climate Change) was established jointly by the WMO and:
Explanation: The IPCC was jointly established by the World Meteorological Organization and the UN Environment Programme.
QUESTION 36 OF 200
The IPCC was established in which year?
Explanation: The Intergovernmental Panel on Climate Change (IPCC) was established in 1988.
QUESTION 37 OF 200
Greenhouse gases responsible for global warming primarily include carbon dioxide, methane, and:
Explanation: Nitrous oxide, alongside carbon dioxide and methane, is a major greenhouse gas contributing to warming.
QUESTION 38 OF 200
The greenhouse effect refers to the trapping of heat in Earth's atmosphere by gases that:
Explanation: The greenhouse effect occurs because certain gases absorb and re-emit infrared radiation, trapping heat near Earth's surface.
QUESTION 39 OF 200
Which greenhouse gas has the highest global warming potential per molecule among common ones (though less abundant)?
Explanation: Fluorinated gases like sulfur hexafluoride have an extremely high global warming potential per molecule despite low atmospheric concentration.
QUESTION 40 OF 200
The ozone layer, which protects Earth from harmful UV radiation, is located primarily in which atmospheric layer?
Explanation: The ozone layer, which shields Earth from UV radiation, lies mainly within the stratosphere.
QUESTION 41 OF 200
The ozone hole phenomenon is most pronounced over which region?
Explanation: The ozone hole is most pronounced over Antarctica due to unique polar stratospheric conditions.
QUESTION 42 OF 200
Chlorofluorocarbons (CFCs), major ozone-depleting substances, were historically used primarily in:
Explanation: CFCs were widely used historically as refrigerants and aerosol propellants before being identified as ozone destroyers.
QUESTION 43 OF 200
Acid rain is primarily caused by atmospheric emissions of sulfur dioxide and:
Explanation: Acid rain results mainly from sulfur dioxide and nitrogen oxide emissions reacting with atmospheric moisture.
QUESTION 44 OF 200
Eutrophication, a process leading to oxygen depletion in water bodies, is primarily caused by excess:
Explanation: Eutrophication is caused by excess nutrients, especially nitrogen and phosphorus, entering water bodies and depleting oxygen.
QUESTION 45 OF 200
Biological Oxygen Demand (BOD) is used as an indicator of:
Explanation: Biological Oxygen Demand (BOD) measures the organic pollutant load in water, indicating its pollution level.
QUESTION 46 OF 200
The Air (Prevention and Control of Pollution) Act in India was enacted in which year?
Explanation: India's Air (Prevention and Control of Pollution) Act was enacted in 1981.
QUESTION 47 OF 200
The Water (Prevention and Control of Pollution) Act in India was enacted in which year?
Explanation: India's Water (Prevention and Control of Pollution) Act was enacted in 1974.
QUESTION 48 OF 200
The Environment (Protection) Act, India's umbrella environmental legislation, was enacted in which year, following the Bhopal Gas Tragedy?
Explanation: The Environment (Protection) Act, India's umbrella environmental law, was enacted in 1986 following the Bhopal Gas Tragedy.
QUESTION 49 OF 200
The Wildlife Protection Act in India was enacted in which year?
Explanation: India's Wildlife Protection Act, providing legal protection to species and habitats, was enacted in 1972.
QUESTION 50 OF 200
The Forest (Conservation) Act in India, restricting forest land diversion, was enacted in which year?
Explanation: The Forest (Conservation) Act, restricting diversion of forest land for non-forest use, was enacted in 1980.
QUESTION 51 OF 200
The Central Pollution Control Board (CPCB) in India was established under which legislation?
Explanation: The CPCB was established under the Water (Prevention and Control of Pollution) Act, 1974.
QUESTION 52 OF 200
Project Tiger, a major wildlife conservation initiative in India, was launched in which year?
Explanation: Project Tiger, India's major tiger conservation programme, was launched in 1973.
QUESTION 53 OF 200
Project Elephant, aimed at conserving elephant populations in India, was launched in which year?
Explanation: Project Elephant, aimed at protecting elephants and their habitats, was launched in 1992.
QUESTION 54 OF 200
The National Green Tribunal (NGT) in India was established under legislation passed in which year?
Explanation: The National Green Tribunal (NGT), a specialized environmental court, was established under a 2010 law.
QUESTION 55 OF 200
Biosphere Reserves in India are designated to conserve:
Explanation: Biosphere Reserves conserve representative ecosystems through a system of core, buffer, and transition zones.
QUESTION 56 OF 200
The first Biosphere Reserve established in India was the:
Explanation: The Nilgiri Biosphere Reserve was the first Biosphere Reserve established in India.
QUESTION 57 OF 200
How many Biosphere Reserves does India currently have (approximately, as recognized nationally)?
Explanation: India currently has around 18 Biosphere Reserves recognized nationally.
QUESTION 58 OF 200
A Ramsar Site designation is given to wetlands of:
Explanation: A Ramsar Site designation marks a wetland as being of international importance for conservation.
QUESTION 59 OF 200
India currently has how many Ramsar sites (Wetlands of International Importance), as of recent designations?
Explanation: India currently has over 75 Ramsar sites (wetlands of international importance).
QUESTION 60 OF 200
The term "Biodiversity Hotspot" refers to regions with high species endemism that are also:
Explanation: A biodiversity hotspot combines high species endemism with significant threat from habitat loss.
QUESTION 61 OF 200
India is home to how many recognized global biodiversity hotspots?
Explanation: India hosts four recognized global biodiversity hotspots: Himalaya, Indo-Burma, Western Ghats-Sri Lanka, and Sundaland.
QUESTION 62 OF 200
The concept of "Carbon Footprint" refers to the total amount of:
Explanation: Carbon footprint measures the total greenhouse gases emitted by an individual, organization, or activity.
QUESTION 63 OF 200
Carbon sequestration refers to the process of:
Explanation: Carbon sequestration is the process of capturing and storing atmospheric carbon dioxide to reduce its concentration.
QUESTION 64 OF 200
Renewable energy sources include solar, wind, hydro, and:
Explanation: Renewable energy sources include solar, wind, hydro power, along with geothermal and biomass energy.
QUESTION 65 OF 200
India's International Solar Alliance (ISA), a global initiative, was launched at which conference?
Explanation: India's International Solar Alliance was launched at the COP21 climate conference in Paris in 2015.
QUESTION 66 OF 200
The concept of "Net Zero" emissions refers to a state where:
Explanation: Net Zero emissions means greenhouse gas emissions released are balanced by an equivalent amount removed from the atmosphere.
QUESTION 67 OF 200
India's announced target year for achieving net-zero emissions, declared at COP26, is:
Explanation: India announced its target of achieving net-zero emissions by 2070 at the COP26 summit.
QUESTION 68 OF 200
The term "Biomagnification" refers to the increasing concentration of toxins as they move:
Explanation: Biomagnification refers to toxins becoming more concentrated as they move up successive levels of the food chain.
QUESTION 69 OF 200
DDT, a notorious pesticide associated with biomagnification, was famously highlighted as an environmental hazard in which book?
Explanation: DDT's harmful biomagnification effects were famously exposed in Rachel Carson's book Silent Spring.
QUESTION 70 OF 200
The term "Endemic species" refers to species that are:
Explanation: An endemic species is one found naturally only within a specific, restricted geographic region.
QUESTION 71 OF 200
An "Invasive species" is one that:
Explanation: An invasive species is a non-native organism introduced to a new environment that causes ecological or economic harm.
QUESTION 72 OF 200
The Western Ghats and Sri Lanka biodiversity hotspot is particularly known for high endemism among:
Explanation: The Western Ghats-Sri Lanka hotspot is particularly noted for high endemism among amphibians and flowering plants.
QUESTION 73 OF 200
The IUCN Red List categorizes species based on their risk of:
Explanation: The IUCN Red List classifies species according to their relative risk of extinction.
QUESTION 74 OF 200
The IUCN Red List category "Critically Endangered" indicates a species faces:
Explanation: A species classified as Critically Endangered on the IUCN Red List faces an extremely high risk of extinction in the wild.
QUESTION 75 OF 200
The snow leopard, an endangered big cat, is primarily found in which Indian region?
Explanation: The snow leopard is primarily found in India's Himalayan and Trans-Himalayan high-altitude regions.
QUESTION 76 OF 200
The Great Indian Bustard, a critically endangered bird, faces threats primarily from:
Explanation: The Great Indian Bustard is critically endangered mainly due to habitat loss and collisions with power lines.
QUESTION 77 OF 200
The Gangetic river dolphin, India's national aquatic animal, is primarily threatened by:
Explanation: The Gangetic river dolphin, India's national aquatic animal, is threatened chiefly by river pollution and habitat fragmentation from dams.
QUESTION 78 OF 200
Coral bleaching occurs primarily due to:
Explanation: Coral bleaching happens when rising sea temperatures cause corals to expel the symbiotic algae that give them color and nutrients.
QUESTION 79 OF 200
The term "Ocean Acidification" refers to the decrease in ocean pH primarily caused by:
Explanation: Ocean acidification results from the ocean absorbing excess atmospheric carbon dioxide, lowering its pH.
QUESTION 80 OF 200
Which international agreement specifically addresses the reduction of plastic pollution in oceans, discussed in ongoing UN negotiations?
Explanation: A UN Plastics Treaty, aimed at reducing ocean plastic pollution, is currently under international negotiation.
QUESTION 81 OF 200
The concept of "Sustainable Development" was popularized by which influential 1987 report?
Explanation: Sustainable Development was popularized by the 1987 Brundtland Report, 'Our Common Future'.
QUESTION 82 OF 200
The Sustainable Development Goals (SDGs), adopted by the UN in 2015, comprise how many goals?
Explanation: The UN's Sustainable Development Goals, adopted in 2015, comprise 17 goals.
QUESTION 83 OF 200
The Millennium Development Goals (MDGs), predecessors to the SDGs, were adopted in which year?
Explanation: The Millennium Development Goals, precursors to the SDGs, were adopted by the UN in 2000.
QUESTION 84 OF 200
The concept of "Carbon Trading" or "Emissions Trading" allows entities to buy and sell:
Explanation: Carbon trading allows entities to buy and sell permits or credits representing greenhouse gas emission allowances.
QUESTION 85 OF 200
The Clean Development Mechanism (CDM), established under the Kyoto Protocol, allows developed countries to:
Explanation: The Clean Development Mechanism under the Kyoto Protocol lets developed nations fund emission-reduction projects in developing countries for credits.
QUESTION 86 OF 200
El Nino, a climate phenomenon affecting global weather patterns, is associated with warming of surface waters in which ocean?
Explanation: El Nino involves warming of surface waters in the central and eastern tropical Pacific Ocean, altering global weather.
QUESTION 87 OF 200
La Nina, the counterpart phenomenon to El Nino, is characterized by:
Explanation: La Nina, the opposite phase to El Nino, is marked by cooling of surface waters in the tropical Pacific.
QUESTION 88 OF 200
The Indian Ocean Dipole (IOD), affecting monsoon patterns, refers to temperature differences between which regions?
Explanation: The Indian Ocean Dipole reflects temperature differences between the western and eastern Indian Ocean, affecting monsoons.
QUESTION 89 OF 200
Glacial retreat in the Himalayas is a significant concern primarily linked to:
Explanation: Himalayan glacial retreat is strongly linked to global warming and broader climate change.
QUESTION 90 OF 200
The term "Climate Refugees" refers to people displaced primarily due to:
Explanation: Climate refugees are people displaced primarily due to environmental changes like sea-level rise or extreme weather events.
QUESTION 91 OF 200
Sea level rise is primarily caused by thermal expansion of seawater and:
Explanation: Sea level rise results mainly from thermal expansion of seawater combined with melting glaciers and ice sheets.
QUESTION 92 OF 200
The Sundarbans mangrove ecosystem is particularly vulnerable to which climate change impact?
Explanation: The Sundarbans mangrove ecosystem is especially vulnerable to sea level rise and increasing salinity.
QUESTION 93 OF 200
The National Action Plan on Climate Change (NAPCC) in India was launched in which year?
Explanation: India's National Action Plan on Climate Change (NAPCC) was launched in 2008.
QUESTION 94 OF 200
NAPCC comprises how many national missions addressing various aspects of climate change?
Explanation: NAPCC comprises eight national missions addressing different dimensions of climate action.
QUESTION 95 OF 200
The National Solar Mission, one of the eight missions under NAPCC, aims to promote:
Explanation: The National Solar Mission under NAPCC promotes the generation and adoption of solar energy.
QUESTION 96 OF 200
The concept of "Environmental Impact Assessment" (EIA) is used to evaluate the potential environmental effects of:
Explanation: Environmental Impact Assessment evaluates potential environmental effects of proposed development projects before approval.
QUESTION 97 OF 200
In India, the Environmental Impact Assessment process is governed primarily by notifications issued under which act?
Explanation: India's EIA process is governed by notifications issued under the Environment (Protection) Act, 1986.
QUESTION 98 OF 200
The term "Ecosystem Services" refers to benefits that humans obtain from:
Explanation: Ecosystem services are the benefits humans derive from natural ecosystems, such as pollination and water purification.
QUESTION 99 OF 200
Which type of ecosystem service refers to direct products obtained from ecosystems, such as food and timber?
Explanation: Provisioning services refer to direct products obtained from ecosystems, like food and timber.
QUESTION 100 OF 200
Regulating ecosystem services include processes such as:
Explanation: Regulating ecosystem services include processes such as climate regulation and water purification.
QUESTION 101 OF 200
The concept of "Ecological Footprint" measures human demand on nature compared to:
Explanation: Ecological footprint measures human demand on nature relative to Earth's capacity to regenerate resources.
QUESTION 102 OF 200
The term "Anthropocene" refers to a proposed geological epoch characterized by:
Explanation: The Anthropocene is a proposed geological epoch marked by significant human impact on Earth's geology and ecosystems.
QUESTION 103 OF 200
The concept of "Ecological Succession" refers to the gradual process of:
Explanation: Ecological succession is the gradual process of change in species composition within an ecosystem over time.
QUESTION 104 OF 200
Primary succession occurs in areas that have:
Explanation: Primary succession occurs in areas with no pre-existing soil or life, such as bare rock.
QUESTION 105 OF 200
Secondary succession occurs in areas where:
Explanation: Secondary succession occurs where soil and some organisms already exist after a disturbance like fire or logging.
QUESTION 106 OF 200
A "Keystone species" is one whose impact on its ecosystem is:
Explanation: A keystone species has an ecological impact disproportionately large compared to its abundance.
QUESTION 107 OF 200
The term "Biome" refers to a large naturally occurring community of:
Explanation: A biome is a large naturally occurring community of flora and fauna adapted to a specific climate region.
QUESTION 108 OF 200
Which of the following is considered a major terrestrial biome?
Explanation: Tundra is a major terrestrial biome characterized by cold temperatures and low vegetation.
QUESTION 109 OF 200
The tundra biome is characterized by:
Explanation: The tundra biome features permafrost and low-growing vegetation adapted to cold conditions.
QUESTION 110 OF 200
Permafrost refers to ground that remains:
Explanation: Permafrost is ground that remains frozen for at least two consecutive years.
QUESTION 111 OF 200
The term "Wetland" refers to land areas that are:
Explanation: A wetland is land that is saturated with water, either permanently or seasonally.
QUESTION 112 OF 200
Mangroves, important coastal wetland ecosystems, are particularly valuable for:
Explanation: Mangroves provide valuable coastal protection and significant carbon sequestration capacity.
QUESTION 113 OF 200
"Blue Carbon" refers to carbon captured and stored by:
Explanation: Blue carbon refers to carbon captured and stored by coastal and marine ecosystems like mangroves and seagrasses.
QUESTION 114 OF 200
The term "Afforestation" refers to:
Explanation: Afforestation is the planting of trees in an area that previously had no forest cover.
QUESTION 115 OF 200
The term "Reforestation" refers to:
Explanation: Reforestation is the replanting of trees in areas that were previously forested but have since been degraded.
QUESTION 116 OF 200
The Green India Mission, one of the missions under NAPCC, aims to:
Explanation: The Green India Mission aims to increase forest and tree cover and enhance ecosystem services.
QUESTION 117 OF 200
The concept of "Compensatory Afforestation" requires that when forest land is diverted for non-forest use, an equivalent area must be:
Explanation: Compensatory afforestation requires that diverted forest land be offset by planting an equivalent area elsewhere.
QUESTION 118 OF 200
The Compensatory Afforestation Fund Management and Planning Authority (CAMPA) manages funds collected for:
Explanation: CAMPA manages funds collected specifically for compensatory afforestation activities.
QUESTION 119 OF 200
The term "Deforestation" primarily contributes to climate change by:
Explanation: Deforestation contributes to climate change by releasing stored carbon and reducing the land's carbon sequestration capacity.
QUESTION 120 OF 200
Which region is often referred to as the "Lungs of the Earth" due to its role in oxygen production and carbon absorption?
Explanation: The Amazon Rainforest is often called the 'Lungs of the Earth' for its role in oxygen production and carbon absorption.
QUESTION 121 OF 200
The term "Desertification" refers to the process by which:
Explanation: Desertification is the process by which fertile land turns into desert due to drought, deforestation, or unsuitable farming.
QUESTION 122 OF 200
The UN Convention to Combat Desertification (UNCCD) was adopted in which year?
Explanation: The UN Convention to Combat Desertification (UNCCD) was adopted in 1994.
QUESTION 123 OF 200
India's National Action Plan to Combat Desertification aligns with obligations under the:
Explanation: India's National Action Plan to Combat Desertification aligns with its obligations under the UNCCD.
QUESTION 124 OF 200
Soil erosion is primarily caused by natural agents including water and:
Explanation: Soil erosion is primarily driven by natural agents such as water and wind.
QUESTION 125 OF 200
The practice of "Contour Ploughing," used to reduce soil erosion, involves:
Explanation: Contour ploughing involves ploughing along a slope's natural contours to slow water runoff and reduce erosion.
QUESTION 126 OF 200
"Terrace farming," a soil conservation technique used in hilly regions, involves creating:
Explanation: Terrace farming creates stepped, level platforms on hill slopes to minimize soil erosion.
QUESTION 127 OF 200
The term "Salinization" refers to the process of soil becoming:
Explanation: Salinization is the process by which soil becomes excessively saline, often from poor irrigation drainage.
QUESTION 128 OF 200
Which gas, though naturally occurring, has significantly increased in atmospheric concentration due to agriculture and fossil fuel combustion, contributing to global warming?
Explanation: Methane's atmospheric concentration has risen significantly due to agriculture and fossil fuel use, adding to global warming.
QUESTION 129 OF 200
Landfills and rice paddies are significant anthropogenic sources of which greenhouse gas?
Explanation: Landfills and rice paddies are major anthropogenic sources of methane emissions.
QUESTION 130 OF 200
Nitrous oxide emissions are significantly linked to which agricultural practice?
Explanation: Nitrous oxide emissions are strongly linked to the use of nitrogen-based agricultural fertilizers.
QUESTION 131 OF 200
The term "E-waste" refers to discarded:
Explanation: E-waste refers to discarded electronic and electrical equipment.
QUESTION 132 OF 200
India's E-Waste Management Rules place primary responsibility for waste management on:
Explanation: India's E-Waste Management Rules place primary responsibility on producers through Extended Producer Responsibility.
QUESTION 133 OF 200
The concept of "Extended Producer Responsibility" (EPR) requires manufacturers to be responsible for:
Explanation: Extended Producer Responsibility requires manufacturers to manage their products' entire lifecycle, including disposal.
QUESTION 134 OF 200
The Plastic Waste Management Rules in India aim to regulate the use of:
India announced a ban on identified single-use plastic items effective from which year?
Explanation: India's ban on identified single-use plastic items took effect in 2022.
QUESTION 136 OF 200
The term "Circular Economy" refers to an economic model focused on:
Explanation: A circular economy is an economic model focused on reducing waste through reuse, recycling, and regeneration.
QUESTION 137 OF 200
The 3R principle in waste management stands for:
Explanation: The 3R principle in waste management stands for Reduce, Reuse, and Recycle.
QUESTION 138 OF 200
Biomedical waste, requiring special disposal protocols, primarily originates from:
Explanation: Biomedical waste requiring special disposal protocols primarily originates from healthcare facilities and hospitals.
QUESTION 139 OF 200
The Swachh Bharat Mission, India's national cleanliness campaign, was launched in which year?
Explanation: The Swachh Bharat Mission, India's national cleanliness campaign, was launched in 2014.
QUESTION 140 OF 200
The term "Bioremediation" refers to the use of living organisms to:
Explanation: Bioremediation uses living organisms to remove or neutralize pollutants from contaminated environments.
QUESTION 141 OF 200
Phytoremediation specifically uses which organisms to clean up contaminated sites?
Explanation: Phytoremediation specifically uses plants to clean up contaminated sites.
QUESTION 142 OF 200
The term "Bioaccumulation" refers to the gradual buildup of substances in an organism due to:
Explanation: Bioaccumulation occurs when a substance's absorption rate in an organism exceeds its elimination rate.
QUESTION 143 OF 200
Which international treaty specifically regulates persistent organic pollutants (POPs) like DDT?
Explanation: The Stockholm Convention specifically regulates persistent organic pollutants (POPs) such as DDT.
QUESTION 144 OF 200
The Rotterdam Convention deals with international trade in:
Explanation: The Rotterdam Convention governs international trade in hazardous chemicals and pesticides.
QUESTION 145 OF 200
The term "Carbon Neutral" describes an entity that:
Explanation: A carbon-neutral entity balances its carbon emissions with equivalent carbon removal or offsets.
QUESTION 146 OF 200
Which renewable energy source harnesses heat from within the Earth?
Explanation: Geothermal energy harnesses heat generated from within the Earth.
QUESTION 147 OF 200
Tidal energy harnesses power from:
Explanation: Tidal energy harnesses power generated by the rise and fall of ocean tides.
QUESTION 148 OF 200
Biomass energy is derived from organic materials such as:
Explanation: Biomass energy is derived from organic materials such as plant and animal waste.
QUESTION 149 OF 200
India's largest solar power park is located in which state (among notable large installations)?
Explanation: Rajasthan hosts several of India's largest solar power installations, including major solar parks.
QUESTION 150 OF 200
Bhadla Solar Park, one of the world's largest solar parks, is located in which state?
Explanation: Bhadla Solar Park, one of the largest solar parks in the world, is located in Rajasthan.
QUESTION 151 OF 200
The National Action Plan on Climate Change's National Water Mission focuses primarily on:
Explanation: The National Water Mission under NAPCC focuses on water conservation and its efficient use.
QUESTION 152 OF 200
The term "Water Stress" refers to a situation where:
Explanation: Water stress occurs when demand for water exceeds available supply, or when poor water quality restricts its use.
QUESTION 153 OF 200
The Central Ground Water Board in India monitors and regulates:
Explanation: The Central Ground Water Board monitors and regulates India's groundwater resources.
QUESTION 154 OF 200
The term "Rainwater Harvesting" refers to the collection and storage of rainwater for:
Explanation: Rainwater harvesting collects and stores rainwater for later use, including recharging groundwater.
QUESTION 155 OF 200
The Atal Bhujal Yojana, a government scheme, focuses on:
Explanation: The Atal Bhujal Yojana scheme focuses on promoting sustainable groundwater management.
QUESTION 156 OF 200
The Namami Gange Programme aims to address pollution and conservation of which river?
Explanation: The Namami Gange Programme addresses pollution abatement and conservation of the Ganga river.
QUESTION 157 OF 200
The National Mission for Clean Ganga was established under which ministry's oversight?
Explanation: The National Mission for Clean Ganga operates under the oversight of the Ministry of Jal Shakti.
QUESTION 158 OF 200
The term "Sustainable Agriculture" focuses on farming practices that:
Explanation: Sustainable agriculture focuses on farming practices that meet present food needs without compromising future resources.
QUESTION 159 OF 200
Organic farming avoids the use of synthetic fertilizers and pesticides, relying instead on:
Explanation: Organic farming avoids synthetic fertilizers and pesticides, relying on natural inputs like compost and biological pest control.
QUESTION 160 OF 200
The state of Sikkim gained recognition as India's first fully organic state in which year?
Explanation: Sikkim became recognized as India's first fully organic state in 2016.
QUESTION 161 OF 200
The term "Genetically Modified Organism" (GMO) refers to organisms whose genetic material has been altered using:
Explanation: A genetically modified organism has had its genetic material altered using biotechnology techniques.
QUESTION 162 OF 200
Bt Cotton, a widely cultivated GM crop in India, is engineered to resist:
Explanation: Bt Cotton, widely grown in India, is genetically engineered to resist bollworm pests.
QUESTION 163 OF 200
The Genetic Engineering Appraisal Committee (GEAC) in India is responsible for approving:
Explanation: India's Genetic Engineering Appraisal Committee (GEAC) is responsible for approving genetically modified organisms and products.
QUESTION 164 OF 200
The concept of "Agroforestry" combines agricultural crops with:
Explanation: Agroforestry combines agricultural crops with trees and shrubs grown on the same land.
QUESTION 165 OF 200
The term "Monoculture" in agriculture refers to:
Explanation: Monoculture refers to the practice of growing a single crop repeatedly on the same land.
QUESTION 166 OF 200
Excessive monoculture farming can lead to increased vulnerability to:
Explanation: Excessive monoculture farming increases vulnerability to pest outbreaks and soil nutrient depletion.
QUESTION 167 OF 200
The term "Green Revolution" in agriculture primarily involved the introduction of:
Explanation: The Green Revolution introduced high-yielding variety seeds, chemical fertilizers, and expanded irrigation to agriculture.
QUESTION 168 OF 200
A criticism commonly associated with the Green Revolution is its impact on:
Explanation: A major criticism of the Green Revolution is its role in groundwater depletion and soil degradation from excessive irrigation and chemical use.
QUESTION 169 OF 200
The concept of "Food Security" encompasses availability, access, and:
Explanation: Food security encompasses food availability, access, and proper utilization or nutritional adequacy.
QUESTION 170 OF 200
The Food and Agriculture Organization (FAO) is a specialized agency of which international body?
Explanation: The Food and Agriculture Organization (FAO) is a specialized agency of the United Nations.
QUESTION 171 OF 200
The term "Carrying Capacity" refers to the maximum population size an environment can sustain given:
Explanation: Carrying capacity is the maximum population an environment can sustain given its available resources and conditions.
QUESTION 172 OF 200
The concept of "Overpopulation" is often discussed in relation to resource depletion and:
Explanation: Overpopulation is often discussed in relation to resource depletion and the limits of environmental carrying capacity.
QUESTION 173 OF 200
The term "Urban Heat Island" effect refers to cities experiencing higher temperatures than surrounding rural areas due to:
Explanation: The Urban Heat Island effect occurs because concrete, asphalt, and reduced vegetation absorb and retain more heat than rural areas.
QUESTION 174 OF 200
Green building certifications, such as LEED or GRIHA (used in India), assess buildings based on:
Explanation: Green building certifications like LEED and GRIHA assess buildings based on environmental sustainability and energy efficiency.
QUESTION 175 OF 200
GRIHA, India's own green building rating system, stands for:
Explanation: GRIHA, India's own green building rating system, stands for Green Rating for Integrated Habitat Assessment.
QUESTION 176 OF 200
The concept of "Air Quality Index" (AQI) is used to communicate:
Explanation: The Air Quality Index (AQI) communicates the level of air pollution and its associated health risks to the public.
QUESTION 177 OF 200
Particulate Matter (PM2.5), a major air pollutant, refers to particles with a diameter smaller than:
Explanation: PM2.5 refers to particulate matter with a diameter smaller than 2.5 micrometers, a major air pollutant.
QUESTION 178 OF 200
PM10, another key air quality indicator, refers to particulate matter with a diameter smaller than:
Explanation: PM10 refers to particulate matter with a diameter smaller than 10 micrometers, another key air quality indicator.
QUESTION 179 OF 200
Which pollutant is a major contributor to smog formation, particularly in urban areas with heavy vehicular traffic?
Explanation: Ground-level ozone, formed from NOx and VOCs, is a major contributor to smog, especially in traffic-heavy urban areas.
QUESTION 180 OF 200
The National Air Quality Index in India was launched in which year?
Explanation: India's National Air Quality Index was launched in 2014.
QUESTION 181 OF 200
The National Clean Air Programme (NCAP) in India was launched in which year?
Explanation: India's National Clean Air Programme (NCAP) was launched in 2019.
QUESTION 182 OF 200
Stubble burning, a major contributor to air pollution in North India, primarily occurs due to disposal of leftover residue from which crops?
Explanation: Stubble burning in North India mainly results from disposal of leftover residue from rice and wheat crops.
QUESTION 183 OF 200
The term "Noise Pollution" is regulated in India under rules framed within which broader legislation?
Explanation: Noise pollution in India is regulated under rules framed within the Environment (Protection) Act, 1986.
QUESTION 184 OF 200
Light pollution, an emerging environmental concern, primarily affects: