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Given below are two Statements: Statement I: Classical smog occurs in cool humid climate. It is a reducing mixture of smoke, fog and sulphur dioxide. Statement II: Photochemical smog has components, ozone, nitric oxide, acrolein, formaldehyde, PAN etc. In the light of the above statements, choose the most appropriate answer from the options given below.

1. Both Statement I and Statement II are correct.
2. Both Statement I and Statement II are incorrect.
3. Statement I is correct but Statement II is incorrect.
4. Statement I is incorrect but Statement II is correct.

Correct answer: Both Statement I and Statement II are correct.

Solution

Both statements accurately describe the characteristics of classical and photochemical smog. Classical smog is indeed associated with cool, humid conditions and includes smoke and sulfur dioxide, while photochemical smog consists of various harmful components like ozone and nitric oxide.

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