Question

Time to Learn
A. Tick (7) the correct answers.
1. The height of the atmosphere above the mean sea level is about
b. 2,600 km.
c. 3,600 km.
a. 1,600 km
d. 10,000 km.
2. Which of the following gas present in the atmosphere is important for the growth of plants?
a. Hydrogen
b. Oxygen
c. Carbon dioxide d. Helium
3. The amount of carbon dioxide in the atmosphere is
a. decreasing b. increasing
c. fixed.
d. eliminated.
4. Water vapour is confined only to the
a. troposphere. b. stratosphere. c. ionosphere.
d. thermosphere.
5. The lower part of the stratosphere has concentration of
a. ozone.
b. argon.
c. hydrogen.
d. nitrogen.
6. Which gas protects us from the ultraviolet rays of the sun?
a. Helium
b. Ozone
c. Nitrogen
d. Oxygen
7. Which of the following layers of the atmosphere form the uppermost layer?
a. Mesosphere b. lonosphere
c. Exosphere
d. Thermosphere
134​

Answer 1

Answer:

1 .2400

2 .Carbon dioxide

3 .Increasing

4 .Troposphere

5 .Ozone

6 .Ozone

7 .Exosphere

Answer 2

Answer:

1.

here is the correct answer of 10,000 km and 24,000 km is the wrong answer the answer is 10,000 km