Question

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

• A. N${}_2$O 6%, CO${}_2$ 86%
• B. Methane 20%, N${}_2$O 18%
• C. CFC 14%, Methane 20%
• D. CO${}_2$ 40%, CFC 30%

Answer 1

Answer: (C)

CFC 14%, Methane 20%

Greenhouse gasses generally traps the radiations of the earth which leads to increase in the temperature of the earth and global warming. The greenhouse gasses includes water vapor, carbon dioxide, methane, nitrous oxide, and ozone. The concentration of ozone is 14% and methane is 20%.

Thus, the correct answer is option C.