NEET BIOLOGY

Detailed explanation-1: -Eutrophication occurs when the water body becomes overly enriched with nutrients. Various factors like excessive use of fertilisers, untreated sewage, usage of detergents containing phosphorous and industrial discharge of waste may contribute to eutrophication.

Detailed explanation-2: -Eutrophication is a type of pollution caused when excess nutrients, primarily nitrogen and phosphorus, enter the water. The overload of nutrients cause algae to grow uncontrollably, depleting the water of oxygen as they die.

Detailed explanation-3: -High levels of nitrogen and phosphorus can cause eutrophication of water bodies.

Detailed explanation-4: -Chemical fertilizers contain phosphates, nitrates that can actually be the main reason behind water pollution. Environmental nitrogen and phosphorous contribute to the process of Eutrophication, which enriches the water surface with nutrients.

Detailed explanation-5: -The increase in eutrophication is the result of human activities. Major sources of nutrients to freshwater and coastal ecosystems include wastewater, agriculture, and atmospheric deposition of nitrogen from burning fossil fuels.