environment easy MCQ

Which gas is primarily responsible for the 'greenhouse effect' contributing to global warming?

  1. Oxygen
  2. Nitrogen
  3. Carbon dioxide
  4. Argon

Answer: Carbon dioxide

CO2 traps heat radiated from Earth's surface, preventing it from escaping into space, thus warming the atmosphere.

Topic Environmental Pollution
Exam Relevance SSC, Railway
More environment Questions Back to all questions