Which of the following constituents of the atmosphere are important fr – McqOptions

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1.	Which of the following constituents of the atmosphere are important from the climatic point 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.

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