Question

What is pollution?
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Answer 1

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Addition of anything in the environment which contaminates the national resources like air, water and soil is called pollution.

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Answer 2

Pollution is the introduction of contaminants into the natural environment that cause adverse change. Pollution can take the form of chemical substances or energy, such as noise, heat, or light. Pollutants, the components of pollution, can be either foreign substances/energies or naturally occurring contaminants.