Which among the following is a biodegradable pollutant? (A) Plastic (B) Aluminum (C) DDT (D) Paper Answer: (D)
The major cause of ozone depletion is – (A) Carbon dioxide (B) Methane (C) Chlorofluorocarbons (CFCs) (D) Sulfur dioxide Answer: (C)
The Convention on Biological Diversity (CBD) was signed at – (A) Kyoto (B) Paris (C) Rio de Janeiro (D) Stockholm Answer: (C)
Which is the first national park established in India? (A) Kanha (B) Bandipur (C) Corbett (D) Gir Answer: (C)
Which phenomenon causes the warming of the Pacific Ocean waters? (A) El Niño (B) La Niña (C) Albedo (D) Salinity Answer: (A)
The term “Albedo” refers to – (A) Absorption of heat (B) Reflection of solar radiation (C) Emission of infrared rays (D) Ozone formation Answer: (B)
Which of these is an example of a point source of pollution? (A) Automobile emission (B) Agricultural runoff (C) Industrial discharge pipe (D) Deforestation Answer: (C)
Which gas causes the greenhouse effect in the largest quantity? (A) Carbon dioxide (B) Methane (C) Ozone (D) Nitrous oxide Answer: (A)
Which of the following is NOT a type of biodiversity? (A) Genetic (B) Ecosystem (C) Cultural (D) Species Answer: (C)
Which of the following species is critically endangered? (A) Tiger (B) Asiatic Lion (C) Great Indian Bustard (D) Nilgai Answer: (C)
What is the main cause of coral bleaching? (A) Overfishing (B) Rising ocean temperatures (C) Increased salinity (D) Ocean acidification Answer: (B)
Which gas is responsible for the smell of rotten eggs? (A) Hydrogen Sulphide (B) Methane (C) Ammonia (D) Sulfur dioxide Answer: (A)
Which one is not a natural cause of climate change? (A) Volcanic eruption (B) Solar radiation changes (C) Fossil fuel combustion (D) Ocean currents Answer: (C)
Which of the following countries emits the most carbon dioxide currently? (A) USA (B) China (C) Russia (D) India Answer: (B)
What is the major pollutant in vehicle exhaust? (A) Ozone (B) Carbon monoxide (C) Ammonia (D) Sulfur dioxide Answer: (B)
Which organization publishes ‘World Energy Outlook’? (A) UNEP (B) IEA (C) WWF (D) IUCN Answer: (B)
Which of the following is NOT a renewable resource? (A) Biomass (B) Solar (C) Wind (D) Coal Answer: (D)
The BOD test measures – (A) Pollution from radioactive substances (B) Biodegradable organic matter in water (C) Level of suspended particles (D) Level of oxygen dissolved Answer: (B)
The term ‘Cryosphere’ is related to – (A) Forest (B) Ice-covered regions (C) Desert (D) Oceans Answer: (B)
Which of the following is known as the “lungs of the Earth”? (A) Forests (B) Oceans (C) Rivers (D) Mountains Answer: (A)
Which country hosted COP26 in 2021? (A) France (B) United Kingdom (C) USA (D) Spain Answer: (B)
Which Indian river is considered sacred and is now highly polluted? (A) Yamuna (B) Godavari (C) Ganga (D) Krishna Answer: (C)
Which of the following produces oxygen in the ocean? (A) Fish (B) Planktons (C) Coral (D) Crabs Answer: (B)
Which gas is most abundant in the Earth’s atmosphere? (A) Oxygen (B) Carbon dioxide (C) Nitrogen (D) Hydrogen Answer: (C)
Which is the deepest oceanic trench? (A) Sunda Trench (B) Mariana Trench (C) Java Trench (D) Aleutian Trench Answer: (B)
Which of the following is NOT a Ramsar site in India? (A) Wular Lake (B) Ashtamudi Lake (C) Chilika Lake (D) Dal Lake Answer: (D)
What is the primary source of energy for Earth’s ecosystem? (A) Wind (B) Solar (C) Geothermal (D) Water Answer: (B)
Which of these best defines ‘carbon footprint’? (A) Total greenhouse gases emitted by an individual or organization (B) Size of land required to sustain an individual (C) Biodiversity loss by a company (D) Pollution by agriculture Answer: (A)
Which program is known as ‘Green Nobel’ for environmental activism? (A) Global 500 Award (B) Goldman Environmental Prize (C) UNEP Global Prize (D) Earth Hero Award Answer: (B)
Which of these practices helps in water conservation? (A) Slash and burn agriculture (B) Rainwater harvesting (C) Overgrazing (D) Deforestation Answer: (B)
The term ‘Rewilding’ refers to – (A) Creating new zoos (B) Restoring ecosystems to their natural state (C) Exporting wildlife (D) Mining in forest areas Answer: (B)
Which layer absorbs UV rays from the sun? (A) Troposphere (B) Stratosphere (C) Mesosphere (D) Thermosphere Answer: (B)
Which of the following is considered the most sustainable energy source? (A) Oil (B) Coal (C) Solar (D) Natural Gas Answer: (C)
The ‘Ganga Action Plan’ was launched in which year? (A) 1985 (B) 1990 (C) 1980 (D) 1975 Answer: (A)
Which of the following forests is called ‘monsoon forest’? (A) Tropical evergreen forest (B) Tropical deciduous forest (C) Temperate coniferous forest (D) Desert forest Answer: (B)
In an ecosystem, which group directly uses solar energy? (A) Carnivores (B) Herbivores (C) Decomposers (D) Producers Answer: (D)
Which national park is famous for the Asiatic lions? (A) Gir (B) Kaziranga (C) Ranthambore (D) Kanha Answer: (A)
Which Indian city is the first to run 100% on renewable energy? (A) Chennai (B) Surat (C) Diu (D) Mysuru Answer: (C)
Which act in India controls noise pollution? (A) Air Act (B) Water Act (C) EPA, 1986 (D) Noise Pollution Rules, 2000 Answer: (D)
Which summit led to the creation of Agenda 21? (A) Kyoto Protocol (B) Rio Earth Summit (C) Montreal Protocol (D) Paris Agreement Answer: (B)
The method of growing plants without soil is called – (A) Afforestation (B) Hydroponics (C) Horticulture (D) Vermiculture Answer: (B)
Which is the largest desert in the world? (A) Gobi (B) Kalahari (C) Thar (D) Sahara Answer: (D)
Which of the following is a function of the biosphere? (A) Production of soil (B) Recycling of nutrients (C) Creation of minerals (D) Formation of rocks Answer: (B)
Which layer of the atmosphere experiences auroras? (A) Troposphere (B) Stratosphere (C) Mesosphere (D) Thermosphere Answer: (D)
Which of these animals is NOT found in the Arctic region? (A) Polar bear (B) Reindeer (C) Penguin (D) Arctic fox Answer: (C)
Which organization publishes the Emission Gap Report? (A) IPCC (B) UNEP (C) IEA (D) WHO Answer: (B)
Which of the following is a secondary pollutant? (A) Carbon monoxide (B) Ozone (C) Nitric oxide (D) Sulfur dioxide Answer: (B)
Which is the largest coral reef system in the world? (A) Belize Barrier Reef (B) Great Barrier Reef (C) Red Sea Coral Reef (D) New Caledonia Barrier Reef Answer: (B)
Which of the following is not an invasive species in India? (A) Lantana (B) Water hyacinth (C) Nilgiri Tahr (D) Parthenium Answer: (C)
Which country launched the “Green Wall” project to combat desertification? (A) India (B) Australia (C) China (D) Brazil Answer: (C)