Which one of the following gases is placed second in respect of abundance in the Earth’s atmosphere?
A. Oxygen
B. Hydrogen
C. Nitrogen
D. Carbon dioxide
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Which one of the following gases is placed second in respect of abundance in the Earth’s atmosphere?
A. Oxygen
B. Hydrogen
C. Nitrogen
D. Carbon dioxide
Which one of the following gases is placed second in respect of abundance in the Earth’s atmosphere?
A. Oxygen
B. Hydrogen
C. Nitrogen
D. Carbon dioxide
Correct option (a) Oxygen
Explanation:
The atmosphere is composed of ~78% nitrogen and ~21% oxygen, with small amounts of other gases. Gases like carbon dioxide, nitrous oxides, methane, and ozone are trace gases that account for about a tenth of one percent of the atmosphere.