Question

Arrange the following greenhouse gases in increasing order of their relative contribution to global warming:
Greenhouse gases:
A. CO₂
B. N₂O 
C. CFCs 
D. CH₄
Choose the correct answer from the options given below:

• A. (A), (D), (C), (B)
• B. (C), (B), (D), (A)
• C. (B), (C), (D), (A)
• D. (B), (C), (A), (D)

Hint:

Greenhouse gases vary in their global warming potential and atmospheric abundance; CO2 contributes the most due to its sheer volume.

Answer 1

The Correct Option is C

1. Greenhouse gas contributions to global warming, from least to most significant, are:
   • N₂O (least),
   • CFCs,
   • CH₄,
   • CO₂ (most).
2. CO₂ exhibits the highest overall impact due to its abundance, whereas N₂O has a minimal effect owing to its lower concentration.