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Drinking water problem in our urban' are...

Drinking water problem in our urban' areas is caused mainly because we fail to protect our water bodies. Explain how accelerated eutrophication chokes our water bodies to death.

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Eutrophication of water bodies leading to killing fishes is mainly due to

A water body characterized by nutrient rich water supports abundant growth of phytoplanktons and other water plants on its surface. Over time, the water body gets filled with a large number of such plants and the process is called Eutrophication. In such water bodies, dissolved oxygen content is nil or very less. In eutrophicated water body, growth rate of phytoplankton is high because of:

A water body characterized by nutrient rich water supports abundant growth of phytoplanktons and other water plants on its surface. Over time, the water body gets filled with a large number of such plants and the process is called Eutrophication. In such water bodies, dissolved oxygen content is nil or very less. There is an extremely low level of dissolved oxygen in a eutrophicated water body because:

A water body characterized by nutrient rich water supports abundant growth of phytoplankton and other water plants on its surface. Over time, the water body gets filled with a large number of such plants and the process is called Eutrophication. In such water bodies, dissolved oxygen content is nil or very less. There is an extremely low level of dissolved oxygen in a eutrophicated water body because :