Question

what are pollutants?
answer pollution is the introduction of harmful materials into the environment are called pollutants ​

Answer 1

Answer:

A pollutant is a substance or energy introduced into the environment that has undesired effects, or adversely affects the usefulness of a resource. They cause pollution.

Explanation:

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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.