Consider the following statements:
1. Nearly 99% of the total mass of the atmosphere lies within 30 km of the Earth's surface.
2. The proportion of ozone in the atmosphere increases to a maximum at about 60 km from Earth's surface.
Which of the statements given above is/are correct?

A) 1 only B) 2 only C) Both 1 and 2 D) Neither 1 nor 2

Answer & Solution

Correct Answer: Option A

Nearly 99% of the total mass of the atmosphere lies within 30 km of the Earth's surface. About 99% of the total atmospheric mass is concentrated in the first 20 miles (32 km) above Earth's surface.

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Consider the following statements 1 Nearly 99 of the total mass...

Consider the following statements: 1. Nearly 99% of the total mass of the atmosphere lies within 30 km of the Earth's surface. 2. The proportion of ozone in the atmosphere increases to a maximum at about 60 km from Earth's surface. Which of the statements given above is/are correct?

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Related Questions on Atmosphere

Consider the following statements:
1. Nearly 99% of the total mass of the atmosphere lies within 30 km of the Earth's surface.
2. The proportion of ozone in the atmosphere increases to a maximum at about 60 km from Earth's surface.
Which of the statements given above is/are correct?