Question

The addition of harmful substance to our environment making it unsafe

Answer 1

Explanation:

In general, hazardous chemicals can enter marine organisms and food webs via the surrounding environment and diet. ... Sometimes the concentration of a particular substance may be low in the water, but reach harmful levels when biomagnified in the trophic chain.

Answer 2

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In general, hazardous chemicals can enter marine organisms and food webs via the surrounding environment and diet. ... Sometimes the concentration of a particular substance may be low in the water, but reach harmful levels when biomagnified in the trophic chain.