Question

Define cultural eutrophication.

Answer 1

The excessive richness of nutrients that causes dense growth of algae on the surface of water and it cause death to the other organisms living in water is called eutrophication.

Answer 2

Cultural eutrophication is when a flux of excess nutrients from human activity are added into a local run-off which in turns speeds up the natural eutrophication. This is caused by human activity, this problem became apparent once the green revolution and industrial revolution began in the last century.