ESS
Grade-9
Easy
Question
Match the following
| Greenhouse gas |
Contribution to greenhouse effect (%) |
| 1. Carbon dioxide |
a. 6% |
| 2. Nitrous oxide |
b. 14% |
| 3. Methane |
c. 20% |
| 4. Carbon fluorocarbon |
d. 60% |
- 1 – d, 2 -a, 3 – c, 4 – b
- 1 -d, 2 -c, 3 -b, 4 -a
- 1 -c, 2- b, 3 – d, 4 – a
- 1 -d, 2 -a, 3 – b, 4 - c
Hint:
Carbon dioxide is the major contributor to greenhouse effect
The correct answer is: 1 – d, 2 -a, 3 – c, 4 – b
Carbon dioxide being the major contributor contributes 60% whereas others contribute accordingly
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