Multiple choice

Which of the following is the most harmful pollutant?

  1. DDT

  2. 3, 4 Benzyprene

  3. Radioactive substances

  4. Noise of 120 decibels
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

3,4-Benzpyrene (Benzo[a]pyrene) is a polycyclic aromatic hydrocarbon and potent carcinogen. It's extremely harmful even at low concentrations, causing DNA damage and cancer. DDT, while toxic and persistent, is less immediately harmful than this carcinogen.

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