MariaIZweird7578
MariaIZweird7578
12.06.2020 • 
Medicine

Which is a cause of eutrophication? Bacteria use up the oxygen in the water, killing off fish and other organisms.

Wastewater enters lakes and ponds, increasing nitrogen and phosphorus.

Algae prevent sunlight from reaching plants and animals below the surface.

Ocean currents stir up nutrients from the ocean’s cold bottom layers.

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