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Unilorin Post-UTME Biology 2023 (Model questions) Question 8

Question 8

Pollution

Which of the following is not a greenhouse gas?

  1. A.carbon dioxide
  2. B.methane
  3. C.nitrogen
  4. D.water vapour
Show the answer and explanation

Answer: C (nitrogen)

Explanation

Carbon dioxide, methane and water vapour trap heat; nitrogen gas (N2) does not.