2.       What layer of the atmosphere that starts just above the troposphere and extends to about 50 km where planes fly to get out from weather disturbances?

3.       In which atmospheric layer is Aurora borealis found?

4.       What is the most abundant element in the Earth's atmosphere?

5.       Which of the following is considered to be the coldest layer?

6.       The layer of the atmosphere that continues into outer space?

7. What is the basis for the division of the layers of the atmosphere?

8. 8. In which layer of the atmosphere where nearly all weather phenomena occur?

9.       What is the correct order of Earth's atmospheric layers from bottom to top?

10.       Which of the following statements is/are true about the ozone layer?

I.               It is found in the stratosphere.

II.             It is made up of three oxygen atoms.

III.            It blocks UV rays from getting to Earth.

IV.           It prevents meteors from getting to Earth