What are Carbon dioxide and nitrous oxide's relative contributions to the greenhouse effect?

(A) 20% and 4%

(B) 40% and 6%

(C) 50% and 6%

(D) 60% and 6%

The Correct Answer is (D) 60% and 6%

Solution

The major contribution of carbon dioxide [CO2] towards the greenhouse effect is 60%

The major contribution of nitrous oxide [N2O] towards the greenhouse effect is 6%

The gases that trap heat in the earth’s atmosphere are called Greenhouse Gases.

The Primary Greenhouse Gases are:

  • Ozone [ O₃]
  • Methane [CH4]
  • Water Vapour
  • Nitrous oxide [N2O]
  • Carbon dioxide [CO2]

Other Greenhouse Gases are:

  • Carbon monoxide [CO]
  • Chlorofluorocarbons [CFCs]
  • Black carbon (soot) and brown carbon.
  • Fluorinated gases There are four fluorinated gases, the most concentrated and longest-lasting kind of greenhouse gases emitted by human activities. Hydrofluorocarbons (HFCs), sulfur hexafluoride (SF6), perfluorocarbons (PFCs) and nitrogen trifluoride (NF3) are four types of fluorinated gases.

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