The pollutants which come directly in the air from sources are called primary pollutants. Primary pollutants are sometimes converted into secondary pollutants. Which of the following belongs to second

Question

The pollutants which come directly in the air from sources are called primary pollutants. Primary pollutants are sometimes converted into secondary pollutants. Which of the following belongs to secondary air pollutants?

Prashant Kotian · Accepted Answer

Correct answer: C. Step 1: Analyze each control method listed. Sewage treatment reduces water pollution, checking atomic blasts reduces radioactive pollution, and electric vehicles reduce air pollution. Step 2: Since all three methods contribute to reducing pollution in their respective domains, they are all valid pollution control measures. Step 3: Therefore, the correct option is (d), all of the above.

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