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Chemical pollution happens when certain compounds are improperly disposed of. This can affect the environment by disrupting the processes of the ecosystem. Chemical pollution happens when certain compounds are improperly disposed of. This can affect the environment by disrupting the processes of the ecosystem.
Learner's definition of CHEMICAL. 1. : of or relating to chemistry. a chemical analysis. chemical elements/bonds. They studied the compound's chemical structure/composition/properties. a chemical laboratory.