

MCQOPTIONS
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1. |
Which of the following constituents of the atmosphere are important from the climaticpoint of view ? [IFS 1993] 1. Nitrogen 2. Oxygen 3. Carbon dioxide |
A. | 1 and 2 |
B. | 2 and 3 |
C. | 1, 2 and 3 |
D. | only 3 |
Answer» E. | |