Multiple choice

Which of the following countries contributes the maximum to air pollution?

  1. India

  2. Africa

  3. USA

  4. Russia

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Historically and in terms of total cumulative emissions, the USA has been one of the largest contributors to global air pollution and greenhouse gas emissions. While this is a complex geopolitical question, it is a standard textbook answer.