Interesting Fact Of AIR

Fantastic Facts Of Air

• Air occupies space . It also has weight .

• Air is a mixture of gases containing nitrogen ( 78 % ) , oxygen ( 21 % ) and water vapour , dust particles and other gases ( 1 % ) .

• Air exerts pressure in all directions .

• Air can be compressed .

• One - fifth of the air is oxxgen . Oxygen is necessary for combustion and resgpiration .

• Photosynthesis in plants is possible because of cartoon dioxide in the air

• Nitrogen present in the air is necessary for the growth of plants .

• The ozone layer protects us from the harmful ultraviolet rays of the sun .

• Burning of fuels and factory wastes are the main causes of air pollution . Cutting down of trees has also led to an increase in air pollution .

• Planting trees , taking measures to reduce smoke and pollutants in factories , and using catalytic converters and unleaded petrol in automobiles are some ways of reducing air pollution .

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