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MCQs On Environmental Science




What is the primary cause of air pollution?


a) Natural disasters

 b) Industrial emissions 

c) Vehicle exhausts 

d) Forest fires 

Answer: b) Industrial emissions



Which of the following is not a common water pollutant? 

a) Sewage

 b) Oil spills 

c) Pesticides

 d) Gravity

 Answer: d) Gravity



What is the primary source of plastic pollution in oceans?

 a) Shipping industries 

b) Fishing of plastic 

c) Land-based activities 

d) Oil spills 

Answer: c) Land-based activities



What is acid rain? 

a) Rain with a pH level higher than 7 

b) Rain with a pH level lower than 7

 c) Rain with a pH level of 7 

d) Rain with a pH level of 5 

Answer: b) Rain with a pH level lower than 7



What is the primary source of noise pollution? 

a) Natural disasters 

b) Industrial activities 

c) Traffic 

d) Construction 

Answer: c) Traffic



What is the primary cause of soil pollution?

 a) Natural erosion 

b) Pesticides and fertilizers 

c) Urbanization 

d) Deforestation 

Answer: b) Pesticides and fertilizers



Which of the following is not a common air pollutant? 

a) Carbon monoxide 

b) Sulfur dioxide

 c) Oxygen 

d) Nitrogen oxides

 Answer: c) Oxygen



What is the primary cause of thermal pollution?

 a) Industrial processes

 b) Natural disasters 

c) Vehicle exhausts 

d) Deforestation 

Answer: a) Industrial processes



What is the primary source of light pollution?

 a) Natural sources

 b) Industrial activities

 c) Streetlights 

d) Construction 

Answer: c) Streetlights



What is the primary cause of marine pollution? 

a) Natural disasters 

b) Oil spills 

c) Land-based activities

 d) Shipping industries 

Answer: c) Land-based activities









What is the primary cause of global warming? 

a) Volcanic eruptions 

b) Deforestation

 c) Greenhouse gas emissions 

d) Solar radiation 

Answer: c) Greenhouse gas emissions



What is the most significant contributor to acid rain?

 a) Nitrogen oxides 

b) Carbon dioxide 

c) Methane 

d) Chlorofluorocarbons 

Answer: a) Nitrogen oxides



What is the primary source of water pollution in urban areas?

 a) Industrial waste 

b) Agricultural runoff 

c) Sewage 

d) Oil spills 

Answer: c) Sewage



Which of the following is not a common air pollutant? 

a) Carbon monoxide

 b) Sulfur dioxide 

c) Oxygen 

d) Nitrogen oxides 

Answer: c) Oxygen



What is the primary cause of biodiversity loss? 

a) Climate change

 b) Habitat destruction 

c) Pollution

 d) Overhunting 

Answer: b) Habitat destruction



What is the primary cause of soil erosion? 

a) Urbanization

 b) Deforestation 

c) Overgrazing 

d) Climate change 

Answer: b) Deforestation



What is the primary source of marine pollution?

 a) Shipping industries 

b) Land-based activities 

c) Oil spills 

d) Natural disasters 

Answer: b) Land-based activities



What is the primary cause of ozone depletion?

 a) Methane emissions 

b) Chlorofluorocarbons

 c) Carbon dioxide 

d) Nitrogen oxides 

Answer: b) Chlorofluorocarbons



What is the primary goal of sustainable development?

 a) Economic growth 

b) Environmental protection 

c) Social equity 

d) All of the above 

Answer: d) All of the above



What is the primary cause of desertification?

 a) Climate change 

b) Overgrazing

 c) Deforestation 

d) Urbanization 

Answer: b) Overgrazing


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