Xplain how excess fertilizers might effect decomposing organisms?

Nitrogen and phosphorus compounds from fertilizers are among the most common pollutants. They contribute to pollution by causing algae and bacteria in the water to reproduce rapidly. When these organisms die, the decomposition process then depletes oxygen in the water, killing fish and other aquatic life.

1. Why does fertilizer cause algae blooms?
2. How do fertilizer affect the growth of algae?
3. How does excessive use of fertilizers cause eutrophication?
4. How does fertilizer runoff affect the environment?
5. What problems are caused by fertilizer use?
6. What is the effect of excess nutrients in water?
7. How do fertilizer affect aquatic organisms?
8. How can overuse of fertilizer in a swamp harm the ecosystem?
9. How does the use of excess of fertilizers and pesticides affect water bodies?
10. How can a farmer contribute to environmental degradation due to compound phosphorus?
11. How do inorganic fertilizers harm the environment?
12. What is eutrophication How can excessive nutrients contribute to eutrophication and what are the possible ramifications use external sources if necessary?
13. What happens excess fertilizer?
14. What are the harmful effects of using excessive fertilizers Class 9?
15. How does fertilizer affect the ecosystem?

Why does fertilizer cause algae blooms?

The potential for blooms comes from nutrient pollution, an overabundance of the essential plant nutrients nitrogen and phosphorus. ... When the concentrations of nitrogen and phosphorus increase in a water body, the right combination of temperature, sunlight and low flow can trigger an algal bloom.

How do fertilizer affect the growth of algae?

Fertilisers can leach into fresh water, adding extra, unwanted nitrates. This will increase algal populations which can cause algal blooms. Algal blooms reduce light levels, killing aquatic plants. These dead plants, as well as dead algae, become food for bacteria which increase greatly in number.

How does excessive use of fertilizers cause eutrophication?

The excessive use of fertilisers cause the micro organisms in the water to get a healthy growth. Therefore, the micro organisms like algae grow and block sunlight from reaching the aquatic organisms.so it causes eutrophication.

How does fertilizer runoff affect the environment?

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.

What problems are caused by fertilizer use?

Some of these impacts include algae blooms causing the depletion of oxygen in surface waters, pathogens and nitrates in drinking water, and the emission of odors and gases into the air. Nutrients from manure and fertilizers enter lakes and streams through runoff and soil erosion.

What is the effect of excess nutrients in water?

Excessive amounts of nutrients can lead to more serious problems such as low levels of oxygen dissolved in the water. Severe algal growth blocks light that is needed for plants, such as seagrasses, to grow. When the algae and seagrass die, they decay.

How do fertilizer affect aquatic organisms?

An oversupply with inorganic nitrogen and phospho- rus compounds causes an increased nitrification, oxygen demand, intensification of the primary production of plankton including "red tides", excessive growths of macro-algae and other water plants as well as formation of the toxic un-ionized ammonia.

How can overuse of fertilizer in a swamp harm the ecosystem?

Fertilizers contain large amounts of nitrogen and phosphorus. When these chemicals runoff agricultural fields into waterways, they can lead to accelerated growth of aquatic plants. ... Due to eutrophication, there is an increased growth of algae and aquatic weeds, harming aquatic life (Davies et.

How does the use of excess of fertilizers and pesticides affect water bodies?

Excessive use of fertilisers and pesticides in fields can lead to their seepage into the ground and mixing with ground water. ... This leads to oxygen deficiency in water, which can cause the death of other aquatic animals. This enrichment of nutrients and depletion of oxygen is called eutrophication.

How can a farmer contribute to environmental degradation due to compound phosphorus?

It is common for farmers to apply phosphorus in excess to make it more available to crop plants, although this also increases the risk of most phosphorus being lost via run-off, leaching or soil erosion, finally ending up in lakes, rivers and oceans. This represents a financial loss and environmental damage.

How do inorganic 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.

What is eutrophication How can excessive nutrients contribute to eutrophication and what are the possible ramifications use external sources if necessary?

Excessive nutrients lead to algal blooms and low-oxygen (hypoxic) waters that can kill fish and seagrass and reduce essential fish habitats. ... Eutrophication sets off a chain reaction in the ecosystem, starting with an overabundance of algae and plants.

What happens excess fertilizer?

Excess fertilizer alters the soil by creating too high of a salt concentration, and this can hurt beneficial soil microorganisms. Over- fertilization can lead to sudden plant growth with an insufficient root system to supply adequate water and nutrients to the plant.

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.

How does fertilizer affect the ecosystem?

Commercial fertilizers release nutrients as they enter surface water. These nutrients stimulate microorganism growth and reproduction, reducing the dissolved oxygen found in marine ecosystems. Fish and other aquatic species suffocate when their habitat doesn't have enough dissolved oxygen in surface water.