Directions : In the following question more than one of the answers given may be correct. Select the correct answer and mark it according to the code:
Acid rain is caused by (1) sulphur dioxide (2) hydrogen'chloride (3) nin-ogen oxides (4) phosphatesA) 1,2 and 3 are correct
B) 1 and 2 are correct
C) 2 and 4 are correct
D) 1 and 3 are correct
Correct Answer: A
Solution :
Although the oxides of sulphur and nitrogen are the main contributors of acid rain but hydrochloric acid is also involved in acid rain problem, emitted from coal fired plant.
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