Fundamentals of Physical Geography-8 ➤ Composition and Structure of Atmosphere

1. Atmosphere contains

2. Atmospheric elements are controlled by

3. What percentage of carbon dioxide is found in air?

4. The mesosphere lies above the

5. Which gas is found as a trace in the atmosphere?

6. What percentage of oxygen is found in the air?

7. Which gas is essential for breathing?

8. The zone separating troposphere from stratosphere is known as

9. Ionosphere is located between

10. The upper limit of mesosphere is known as