Question

Which of the following is the best definition of a pollutant?

A. a natural resource that humans overuse

B. a human activity that destroys habitats

c.a harmfal substance released into the environment

D. a species that humans introduce into an ecosystem​

Answer 1

C! Pollutants are according to Wikipedia, “... a substance or energy introduced into the environment that has undesired effects, or adversely affects the usefulness of a resource.”