Question

The excessive discharge of fertilizers into water bodies results in
A. Growth of fish
B. Death of hydrophytes
C. Eutrophication
D. Silt

Answer 1

Hint: Water contamination, typically due to the discharge of fertilizers, is known as water pollution. As the percentage of water appropriate for human use is very scarce, it is a threatening danger to human life.

Complete answer:
The rain drains the fertilizers into surrounding bodies of water from the soil. The presence of additional nutrients brings about the dense production of plant and animal life. Eutrophication is called this phenomenon. Organic loading, oxygen loss, animal death, and water fouling are caused by eutrophication.

Dystrophication, or hypertrophication, is also called eutrophication. It is possible to describe the term eutrophication as the water body enriched with minerals and nutrients that generate excessive algae growth. After bacterial degradation, the oxygen level of the water body is reduced. Increased nutrient levels in lakes, wetlands, rivers, and coastal zones result in a rise in phytoplankton numbers. An algal bloom is also called phytoplankton.

The discharge into the aquatic environment of fertilizers, detergents, or sewage containing nitrate or phosphate causes the process of eutrophication by excessive plant and algae growth in aquatic environments.

So, choice C-Eutrophication is the correct answer.

Note: Eutrophication of the lake has become one of water pollution's global issues. Phosphate is known to be the primary limiting factor of eutrophication as phosphate availability encourages excessive aquatic plant growth and algae as the essential element for the survival of plants is phosphorus.