Estuaries

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The measure of cloudiness in a body of water.

The emission of light by living creatures through biochemical reactions.

A variety of compounds that are essential to the growth and survival of living organisms.

An area of water where the fresh water from a river meets the salt water from the sea.

Any single identifiable source of pollution from which pollutants are discharged.

Possessing the ability to reproduce offspring or grow living things.

A poisonous substance that causes harm to living organisms.

Pollution that occurs as a result of multiple factors that can not be specifically identified.