Question

what is the pollution​

Answer 1

Answer:

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

Explanation:

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Answer 2

Answer:

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.