Environment and Ecology
2022
Environmental Pollution
Climate Change
Consider the following:
- Carbon monoxide
- Nitrogen oxide
- Ozone
- Sulphur dioxide Excess of which of the above in the environment is/are cause(s) of acid rain?
A.1, 2 and 3
C.4 only
B.2 and 4 only
D.1, 3 and 4
Correct Answer: Option B
Acid rain is primarily caused by the release of sulfur dioxide (SO2) and nitrogen oxides (NOx) into the atmosphere.
These gases react with water, oxygen, and other chemicals to form sulfuric and nitric acids, which then fall to the earth as acid rain.
Carbon monoxide and ozone are not primary contributors to acid rain.
Statement 2 is correct. Statement 4 is correct. Statements 1 and 3 are not correct. Hence, option b is the correct answer.
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