MCQ on Class 3 Air Water and Weather

1. The amount of water vapor in the air is called ……………

2. ………. is a mixture of gases such as oxygen, carbon dioxide, water vapour, smoke, and dust.

3. The term ……………… refers to a form of liquid or solid water falling to Earth from the atmosphere.

4. ……………. impurities are those impurities in water that are visible but are not soluble in water

5. Rain, dew, frost, and fog are all types of water.

6. The process of converting liquid water into gas is called ……………..

7. At night …………….. is the cool air from the land that flows towards the sea.

8. About 78% of this gas is found in the atmosphere…………

9. The hot air moves in……………..direction.

10. ………… is a thin layer of ice crystals that is formed due to very cold weather.

11. Mist is a mild form of fog.

12. Our planet is surrounded by a blanket of air called …………

13. ……………… are very strong winds that can cause damage and destruction

14. ………………. involves passing unclean water through filter paper.

15. Water droplets or ice crystals suspended in the air are called …………..

16. The cool air from the sea moves towards the land and replaces it. It is known as ……………

17. A chemical called…………… is added to water to kill germs.