Question

Write a short note on 'Air pollution'

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Answer 1

Answer:

Air pollution refers to any physical, chemical or biological change in the air. It is the contamination of air by harmful gases, dust and smoke which affects plants, animals and humans drastically. ... An increase or decrease in the composition of these gases is harmful to survival.

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Answer 2

Answer:

Air pollution refers to any physical, chemical or biological change in the air. It is the contamination of air by harmful gases, dust and smoke which affects plants, animals and humans drastically. ... An increase or decrease in the composition of these gases is harmful to survival.

Explanation:

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