A) 0.03%
B) 0.3%
C) 1%
D) 1.1%
Correct Answer: A
Solution :
The atmosphere is an insulating blanket of air around the earth. The composition of air in the atmosphere is [a] Nitrogen gas-78% [b] Oxygen-21% [c] Argon -0.934% [d] Carbon dioxide-0.03% and also some other gases are present in atmosphere.
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