Which Indian state has the highest number of wildlife sanctuaries?
(A) Madhya Pradesh
(B) Maharashtra
(C) Tamil Nadu
(D) Rajasthan
Answer: (C)

Which gas is primarily responsible for the smell in stagnant ponds?
(A) Oxygen
(B) Hydrogen sulfide
(C) Carbon dioxide
(D) Methane
Answer: (B)

Which natural event releases the largest amount of natural CO₂?
(A) Volcanic eruptions
(B) Forest fires
(C) Floods
(D) Earthquakes
Answer: (A)

Which pollutant is associated with the thinning of the ozone layer?
(A) Methane
(B) CFCs
(C) CO₂
(D) SO₂
Answer: (B)

Which of these species is NOT a migratory bird?
(A) Siberian Crane
(B) Bar-headed Goose
(C) Common Myna
(D) Amur Falcon
Answer: (C)

Which organization publishes the “State of the Global Climate” report?
(A) UNEP
(B) IPCC
(C) WMO
(D) WWF
Answer: (C)

Which of the following is not a Ramsar site?
(A) Keoladeo Ghana
(B) Chilika Lake
(C) Loktak Lake
(D) Ranthambore National Park
Answer: (D)

Which major environmental conference was held in 1972?
(A) Rio Earth Summit
(B) Stockholm Conference
(C) Paris Climate Conference
(D) Kyoto Protocol Conference
Answer: (B)

Which concept explains the increasing concentration of toxic substances in food chains?
(A) Bioaccumulation
(B) Biomagnification
(C) Eutrophication
(D) Bioremediation
Answer: (B)

Which gas is used in the treatment of wastewater to kill bacteria?
(A) Ozone
(B) Carbon dioxide
(C) Methane
(D) Nitrogen
Answer: (A)

The Earth Summit of 1992 resulted in which important document?
(A) Agenda 21
(B) Montreal Protocol
(C) Kyoto Protocol
(D) Stockholm Declaration
Answer: (A)

Which national park is famous for swamp deer (Barasingha)?
(A) Kanha National Park
(B) Jim Corbett Park
(C) Sunderbans
(D) Ranthambore
Answer: (A)

Which of the following lakes is a freshwater lake?
(A) Chilika Lake
(B) Sambhar Lake
(C) Dal Lake
(D) Pulicat Lake
Answer: (C)

Which Indian city was the first to implement a Climate Action Plan?
(A) Delhi
(B) Ahmedabad
(C) Mumbai
(D) Chennai
Answer: (B)

Which of the following practices promotes soil conservation?
(A) Overgrazing
(B) Shifting cultivation
(C) Contour ploughing
(D) Deforestation
Answer: (C)

Which term refers to the gradual warming of the earth’s lower atmosphere?
(A) Acid rain
(B) Global warming
(C) Climate neutrality
(D) Ozone hole
Answer: (B)

Which protocol specifically addresses substances that deplete the ozone layer?
(A) Basel Convention
(B) Montreal Protocol
(C) Kyoto Protocol
(D) Paris Agreement
Answer: (B)

Which term refers to species that invade and disrupt local ecosystems?
(A) Endemic species
(B) Invasive alien species
(C) Keystone species
(D) Threatened species
Answer: (B)

Which of the following gases is primarily responsible for forming ground-level ozone?
(A) Carbon monoxide
(B) Nitrogen oxides
(C) Methane
(D) Oxygen
Answer: (B)

Which of the following projects is aimed at conserving tigers in India?
(A) Project Elephant
(B) Project Tiger
(C) Save the Rivers
(D) Green India Mission
Answer: (B)

Which of these is a secondary air pollutant?
(A) Sulfur dioxide
(B) Carbon monoxide
(C) Ozone
(D) Lead
Answer: (C)

Which type of pollution is caused by oil spills?
(A) Soil pollution
(B) Air pollution
(C) Water pollution
(D) Noise pollution
Answer: (C)

Which of the following is an endemic species of the Western Ghats?
(A) Indian Cobra
(B) Lion-tailed Macaque
(C) Indian Cuckoo
(D) Indian Gaur
Answer: (B)

Which of these is the largest saltwater lake in India?
(A) Loktak Lake
(B) Dal Lake
(C) Chilika Lake
(D) Wular Lake
Answer: (C)

Which global organization publishes the ‘Living Planet Report’?
(A) WWF
(B) UNEP
(C) IPCC
(D) FAO
Answer: (A)

Which international treaty deals with hazardous waste transport and disposal?
(A) Basel Convention
(B) Kyoto Protocol
(C) Montreal Protocol
(D) CITES
Answer: (A)

Which country has the highest total area under forests?
(A) Brazil
(B) Russia
(C) Canada
(D) USA
Answer: (B)

Which of the following is a naturally occurring greenhouse gas?
(A) CFC
(B) Nitrous oxide
(C) Ozone
(D) Both (B) and (C)
Answer: (D)

Which city is ranked as the most polluted according to WHO reports?
(A) New Delhi
(B) Beijing
(C) Lahore
(D) Kabul
Answer: (A)

Which environmental movement began in 1983 in the Western Ghats?
(A) Chipko Movement
(B) Appiko Movement
(C) Save Silent Valley
(D) Narmada Bachao Andolan
Answer: (B)

Which of these is the main cause of algal blooms?
(A) Plastic pollution
(B) Oil spills
(C) Excessive nutrients
(D) Heavy metals
Answer: (C)

Which of the following countries does NOT have part of the Amazon Rainforest?
(A) Brazil
(B) Peru
(C) Argentina
(D) Colombia
Answer: (C)

Which atmospheric gas forms acid rain with water?
(A) Carbon monoxide
(B) Sulfur dioxide
(C) Hydrogen
(D) Oxygen
Answer: (B)

Which forest type is mainly found along coastal regions?
(A) Coniferous
(B) Mangroves
(C) Tropical rainforests
(D) Alpine forests
Answer: (B)

Which instrument is used to measure wind speed?
(A) Anemometer
(B) Barometer
(C) Hygrometer
(D) Thermometer
Answer: (A)

Which region of India is most vulnerable to desertification?
(A) Deccan Plateau
(B) Rajasthan
(C) Gangetic Plains
(D) North-East India
Answer: (B)

Which component of an ecosystem is a producer?
(A) Herbivores
(B) Carnivores
(C) Green plants
(D) Decomposers
Answer: (C)

Which natural disaster is measured using the Saffir-Simpson scale?
(A) Earthquake
(B) Cyclone
(C) Tsunami
(D) Flood
Answer: (B)

Which of these is a biotic component of an ecosystem?
(A) Water
(B) Soil
(C) Bacteria
(D) Air
Answer: (C)

Which layer of the atmosphere helps in radio communication?
(A) Troposphere
(B) Stratosphere
(C) Ionosphere
(D) Thermosphere
Answer: (C)

Which process converts organic waste into fertilizer?
(A) Vermicomposting
(B) Incineration
(C) Sanitary landfill
(D) Biogas production
Answer: (A)

Which river in India forms the world’s largest delta?
(A) Yamuna
(B) Ganga
(C) Narmada
(D) Krishna
Answer: (B)

Which environmental phenomenon is related to coral reef death?
(A) Coral bleaching
(B) Eutrophication
(C) Sedimentation
(D) Desertification
Answer: (A)

Which type of ecosystem is least productive?
(A) Desert
(B) Tropical rainforest
(C) Estuary
(D) Coral reef
Answer: (A)

Which of these is NOT considered a pollutant?
(A) Carbon dioxide
(B) Water vapor
(C) Sulfur dioxide
(D) Ozone
Answer: (B)

Which of the following contributes the most to marine pollution globally?
(A) Oil spills
(B) Sewage discharge
(C) Plastic waste
(D) Agricultural runoff
Answer: (C)

Which of these is a conservation strategy outside natural habitats?
(A) Wildlife sanctuary
(B) Biosphere reserve
(C) Botanical garden
(D) National park
Answer: (C)

Which agency monitors air quality under the National Air Monitoring Programme in India?
(A) CPCB
(B) IUCN
(C) WWF
(D) UNFCCC
Answer: (A)

Which year was the Forest (Conservation) Act enacted in India?
(A) 1972
(B) 1976
(C) 1980
(D) 1985
Answer: (C)

Which of the following terms is related to sustainable forestry?
(A) Clear-cutting
(B) Selective cutting
(C) Slash and burn
(D) Logging
Answer: (B)