Question

Define pollution? For class 7​

Answer 1

Answer:

Pollution was defined as the introduction into the environment of substances liable to cause harm to humans and other living organisms. Many human activities pollute our environment, adversely affecting the water we drink, the air we breathe, and the soil in which we grow food.

Explanation:

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Answer 2

Explanation:

the presence in or introduction into the environment of a substance which has harmful or poisonous effects.