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BITSAT2020ChemistryEnvironmental ChemistryActual

The greenhouse effect is because of the

Options

  1. Apresence of gases, which in general are strong infrared absorbers, in the atmosphere
  2. Bpresence of CO ₂ , only in the atmosphere
  3. Cpressure of O ₃ and CH ₄ in the atmosphere
  4. DN ₂ O and chlorofluorohydrocarbons in the atmosphere

Correct answer

A. presence of gases, which in general are strong infrared absorbers, in the atmosphere

Step-by-step solution

Green house gases such as CO ₂ , ozone, methane, the chlorofluorocarbon compounds and water vapour form a thick cover around the earth which prevents the IR rays emitted by the earth to escape. It gradually leads to increase in temperature of atmosphere.

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