Multiple choice

In cities like Mumbai and Kolkata, the major air pollutants are�

  1. Ozone

  2. Carbon mono-oxide and oxides of sulphur

  3. Hydro carbons and hot air

  4. Algal spores and marsh gas
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Major Indian cities like Mumbai and Kolkata have significant vehicular traffic and industrial activity, which are primary sources of carbon monoxide and sulfur oxides. Vehicle emissions and industrial discharges create severe air pollution problems. These pollutants are characteristic of rapidly urbanizing developing cities.

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