What is Eicchornia called?

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AThe carrot grass

BNile perch

CWater hyacinth

DWater lily

Answer:

Eichhornia crassipes also known as water hyacinth.
It was first introduced from South America into China that later on became a serious environmental problem.
It reduces the sunlight penetration and lowers the oxygen content in the water that hampers the water ecosystem.

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