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Environmental Issues — BIOLOGY STD 12 Science — Question

Gujarat BoardEnglish MediumSTD 12 ScienceBIOLOGYEnvironmental Issues1 Mark
MCQ
Which of the following does not contributes to greenhouse effect?
  • A
    Carbon dioxide
  • ✓
    Carbon monoxide
  • C
    Chloro$-$fluoro carbon and Methane
  • D
    Refrigerant freon
✓

Answer

Correct option: B.
Carbon monoxide
Greenhouse gases are the compound in the atmosphere that is capable of absorbing infrared radiation, thereby trapping and holding heat in the atmosphere.
Popular of them are carbon dioxide, methane, chloro$-$fluoro carbon, nitrous oxide, freon and ozone while carbon monoxide is silent killer gas.

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