Question

Which one of the following is the correct percentage of the two (out of the total of 4) green house gases that contribute to the total global warming?

• A. CFCs 14%, Methane 20%
• B. CFCs 20%, Methane 14%
• C. N${}_2$O 6%, CO${}_2$ 86%
• D. Methane 20%, N${}_2$O 18%

Answer 1

The correct option is A CFCs 14%, Methane 20%

Greenhouse effect increases the temperature of the earth.The gases responsible for greenhouse traps the infrared radiations which lead to heating of the earth's surface. The primary greenhouse gases in earth's atmosphere are water vapour, carbon dioxide, methane, nitrous oxide, and ozone. The

Composition of greenhouse gases are

CO${}_2$- 56%

CFCs -14%,

Methane - 20%

Nitrous Oxides - 8%,

Water Vapours - 2%.

Therefore, the correct answer is option A.