MCQ on Class 3 Air Water and Weather

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

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

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

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

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

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

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

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

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

10. Mist is a mild form of fog.

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

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

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

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

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

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

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