Chapter 7 Air and its constituents class 7th ICSE chemistry in hindi

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Chapter 7 Air and its constituents class 7th ICSE chemistry in hindi
0:00 Introduction
2:36 What air is made of?
3:55 Atmosphere
5:56 Layers of Atmosphere
7:26 Constituents of Air
10:44 Uses of Rare gases
12:49 Air is mixture not compound
14:20 Air Quality
15:03 Air Pollution
17:13 Acid Rain
18:51 Methods to Control Air Pollution
20:22 Components of Air
21:31 Nitrogen Cycle
22:18 Oxygen Cycle
22:45 Carbon dioxide cycle
23:18 Air is needed for burning
24:21 Presence of Carbon dioxide in air
25:21 Presence of water vapor in air
26:39 Presence of dust in air
27:20 Thank you

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