MCQ on Class 3 Air Water and Weather

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

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

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

4. Mist is a mild form of fog.

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

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

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

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

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

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

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

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

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

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

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

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

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