Air | Introduction to Natural Resources | Middle School | Science | Khan Academy

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Description: Air is all around us and yet because we do not see it we often forget about it's existence and even begin polluting it. Watch the video to gain insights about the composition of air and the causes of air pollution.

Timestamps:
0:00 Classification of natural resources - (Biotic/Abiotic)
0:22 Classification of Abiotic Components - (Atmosphere, Lithosphere, Hydrosphere)
0:50 Atmosphere - Intro
1:36 Troposphere
2:09 Composition of the atmosphere
2:35 Air Pollution - Types of contaminants
3:40 Causes of Air Pollution - Factories
4:08 Burning Waste
4:39 Burning Stubble
5: 03 Vehicular pollution

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Created by
Joel Prakash Stephen