Which one of the following gases is placed second in respect of abunda

1.	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
Answer» 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.

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

Answer»

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.

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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

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