Consider the following With refrence to Earth 39 s atmosphere 1 The majority of the earth 39 s atmos...........

Geography Atmosphere

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Consider the following With refrence to Earth's atmosphere

1. The majority of the earth's atmosphere consists of a high amount of oxygen.

2. The atmosphere becomes thinner and thinner with increasing altitude.

3. The three major constituents of Earth's atmosphere are nitrogen, oxygen, and argon.

How many of the statements given above are correct?

Only One

Only Two

All Three

None

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Explanation:

Incorrect: The majority of Earth's atmosphere is not oxygen but nitrogen. Oxygen constitutes about 21%, whereas nitrogen makes up approximately 78%.

Correct: The atmosphere does become thinner with increasing altitude. This is because the density of air molecules decreases as one moves higher from the Earth's surface.

Correct: The three major constituents of Earth's atmosphere are indeed nitrogen, oxygen, and argon, in that order of abundance.

Thus, statements 2 and 3 are correct.