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General Science

Environmental Science

All MCQs

Environmental Science

101.

Which gas is primarily responsible for the greenhouse effect?

A

B

C

D

102.

What is the main source of sulfur dioxide (SO2) emissions in the atmosphere?

A

B

C

D

103.

Which term describes the process by which pollutants are removed from the atmosphere through precipitation?

A

B

C

D

104.

What is the main component of photochemical smog in urban areas?

A

B

C

D

105.

What is the term for the breakdown of complex organic compounds into simpler substances in the presence of oxygen?

A

B

C

D

106.

Which of the following is a greenhouse gas released from the agriculture sector?

A

B

C

D

107.

What is the primary cause of the depletion of the ozone layer in the stratosphere?

A

B

C

D

108.

Which term describes the process of removing salts and minerals from seawater to make it suitable for drinking and irrigation?

A

B

C

D

109.

What is the term for the introduction of harmful substances into the environment at levels that exceed natural processes?

A

B

C

D

110.

Which element is a major component of smog, particularly in industrial areas?

A

B

C

D