How do chemical fertilizers harm the environment?

Some of the harm chemical fertilizers may cause include waterway pollution, chemical burn to crops, increased air pollution, acidification of the soil and mineral depletion of the soil.

How does the use of chemical fertilizers cause environmental pollution?

the rain washes down the chemical fertilizer and discharge then into the river and many water bodies causing water pollution . when they are used the young seed that are sowed falls on them and that acts as a poison in the seeds . the use of chemical fertilizer can led to the spoiling of the quality of the soil .

How does the excessive use of fertilizers cause environmental degradation?

The usage of organic fertilizers results in the discharge of nitrate, potassium and phosphates that pollute the water. The contamination of groundwater occurs as a result of leaching due to nitrate. The ground and surface waters are infested with heavy metals, whose concentration poses a threat to humans and animals.

What are the harmful effects of using excessive fertilizers Class 9?

1)fertilizers may cause respiratory ailments, cardiac disease, and several cancers, as well as can “inhibit crop growth, increase allergenic pollen production. 2)Excess nitrogen used in crop fertilization can contribute to the release of greenhouse gases such as carbon dioxide and nitrous oxide into the atmosphere.

What are the disadvantages of chemical fertilizers?

Disadvantages:

• Chemical fertilizers affect micro-organisms living in the soil.
• Chemical fertilizers are highly soluble in water hence they leach away into groundwater without fully benefiting the plant.
• Chemical fertilizers encourage plant disease.

How do the chemical fertilizers cause pollution explain Class 9?

Fertilization may affect the accumulation of heavy metals in soil and plant system. Plants absorb the fertilizers through the soil, they can enter the food chain. Thus, fertilization leads to water, soil and air pollution.

How does excessive chemical fertilizers cause water pollution?

Increased amounts of nitrogen and phosphorous compounds in water as a result of the increase in the amount of higher aquatic plants and algae formation and degradation of water quality and water environment in the event of life is defined as eutrophication.

How does excessive use of fertilizers affect water quality?

When manure or commercial fertilizers enter surface water, the nutrients they release stimulate microorganism growth. Without sufficient dissolved oxygen in surface water, fish and other aquatic species suffocate. The resulting dead fish and other aquatic species degrade the water quality and cause unpleasant odors.

How does chemical fertilizers affect human health?

Use of excessive quantity of synthetic fertilizers are harmful for human health. It is contaminating the surface water via runoffs and its consequent effects. High levels of nitrates and nitrites in chemical fertilizer may cause some disease like hemoglobin disorders, Alzheimer’s disease and diabetes mellitus.