MCQ on Class 3 Air Water and Weather

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

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

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

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

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

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

7. Mist is a mild form of fog.

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

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

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

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

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

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

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

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

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

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