What role do estuaries play in cleaning water?

Question

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Answer 1

The thick grasses and weeds soak up many contaminants harmlessly. They also act as a kind of filter for larger particulates.

Answer 2

They act as breeding grounds and habitats for many organisms, improving water quality by filtering nutrients and pollutants

Answer 3

Think of them as the filter in your aquarium, it biologically and chemically filters waters and hosts a whole large population of different species of aquatic life.