Air Pollution: Causes, Effects and Control · NCERT Biology

In the 1990s, Delhi ranked ________ among the 41 most polluted cities of the world.

  1. First
  2. Fourth
  3. Tenth
  4. Twentieth
Show answer and explanation

Correct answer: Fourth

Due to massive vehicular and industrial growth, Delhi was ranked fourth among the world's most polluted cities in the 1990s. This alarming status led to a Public Interest Litigation (PIL) in the Supreme Court.

Difficulty: Medium Question 9 of 20

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