OAV-AIR, ATMOSPHERE, AND WEATHER (PRACTICE SET-3)

Questions in this test

1. Air is a _________
2. Windmills can generate
3. Which of the following need air to move?
4. Which gas is essential for respiration?
5. The layer of air around the earth is known as
6. ‘Acid rain’ occurs due to pollution of
7. Which of the following is a harmful component of air?
8. What is the percentage of oxygen gas in the air?
9. Animal and human beings inhale
10. Which of the following cannot breathe in water?