Term 3 - Lesson 3 - Air/காற்று

Air pollution

Effects of Air pollution, Global warming, Acid rain

Air pollution

Prevention of air pollution

Air pollution

Causes of Air pollution-Industries ,Burning of fuel, Agricultural activities

Importance of Air

Supplies energy ,Sound travels through in air, Useful for plants, sports

Importance of air

Water cycle

Atmosphere

Troposphere, Stratosphere, Mesosphere, Thermosphere, Exosphere

Introduction part of the lesson

Atmosphere details