NEET BIOLOGY

Detailed explanation-1: -Too much fertilizer can actually kill the plant and excess fertilizer can runoff into streams and lakes causing toxic algal blooms that are harmful to aquatic life and even people and their pets. Excess fertilizer runoff from lawns and agricultural applications also contribute to aquatic “dead zones” in coastal areas.

Detailed explanation-2: -Eutrophication One of the primary effects of fertilizer runoff is eutrophication-excessive nutrient richness in a body of water such as a lake, pond, spring, stream, or estuary.

Detailed explanation-3: -Excess nutrients can cause harmful algal blooms (HABs) in freshwater systems, which not only disrupt wildlife but can also produce toxins harmful to humans. Fertilized soils, as well as livestock operations, are also vulnerable to nutrient losses to the air.

Detailed explanation-4: -Too much nitrogen and phosphorus in the water causes algae to grow faster than ecosystems can handle. Significant increases in algae harm water quality, food resources and habitats, and decrease the oxygen that fish and other aquatic life need to survive.