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Everyday Science Easy FPSC PPSC NTS Uploaded: 22 Jun 2026

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

  • A Oxygen
  • B Carbon dioxide
  • C Nitrogen
  • D Helium
Correct Answer: Option B — Carbon dioxide
Explanation:
Carbon dioxide is the primary greenhouse gas contributing to global warming as it traps heat in the atmosphere due to human activities like fossil fuel combustion and deforestation.
Submitted by: PaperMCQs
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