Why are fertilisers necesssary for over-used soil and how do they cause eutrophication?
We need you to answer this question!
What effect of fertilizer in your environment?
Fertilisers can cause eutrophication, this is where fertilisers run off hills or steep surfaces when it rains. The fertilisers then run into rivers, where eutrophication takes place, it starts by increasing the amount of phytoplankton in the water, this then blocks out the sunlight, which leads to plants being unable to photosynthesise, which in turn means that the fish and other creatures don't have anything to eat, which means they die and then in turn so do other animals that depend on them such as birds.
Asked in Ecosystems
Pollution due to excessive fertilisers used by farmers leading to Eutrophication?
Over-application of chemical fertilisers or application of chemical fertilisers at a time when the ground is waterlogged or the crop is not able to use the chemicals, can lead to surface runoff or leaching into groundwater Storage and application of some fertilisers in some weather or soil conditions can cause emissions of the greenhouse gas nitrous oxide (N2O) primarily associated with the use of artificial fertilisers, because of the massive quantities applied and the destructive nature of chemical fertilisers on soil nutrient holding structures The high solubility of chemical fertilisers also exacerbates their tendency to degrade ecosystems
Asked in Science
What eutrophication and what are the steps that cause it to happen?
Why is eutrophication such a problem?
Natural eutrophication isn't as much of a problem as artificial eutrophication. Artificial eutrophication is caused by humans (fertilizer from farms, lawns, gardens, etc. pesticides, herbicides, road chemicals, etc) these chemicals cause eutrophication to happen much faster than it should. If eutrophication happens faster, algal blooms (large floating mats of algae) form. When algal blooms decay, the bacteria that decays it depletes the oxygen in the lake or pond and the fish die of suffocation.
Are there any health risks from using tanning beds?
What are the two major causes of eutrophication?
Asked in Environmental Issues
What problems do eutrophication cause?
Eutrophication can be so pollutive, it can actually change the water colour to green. Further information: In addition, the murkiness of the water increases, which reduces the amount of light and oxygen which can get through to the animal and plant life in the depths of the water. The speed at which sedimentation occurs intensifies, and this tends to reduce the lifespan of the lake.
Asked in Economics, Industries and Professions
What are the disadvantages and advantages of esters in the industry?
Advantages - easy to prepare, used and found in natural and synthetic flavours and smells, important pharmaceutical drug. Disadvantages - difficult to dispose of, cause allergies, hazardous to environment and they are overused. if your saying that esters are important in industries you can shut down all the disadvantages by saying that aren't all chemicals difficult to dispose of/cause allergies/hazardous to environment/are overused? Reference - my chemistry teacher
Asked in Earth Sciences, Geology, Biology
Describe the process of eutrophication?
Eutrophication is the aging of a lake caused by increased plant growth due to excessive nutrients. For example, if a lake is polluted with phosphorous, a key ingredient in fertilizers, it will cause the algae and other plant to grow faster and in abundance causing the lake to dry up. Eventually, area that used to be the lake can turn into a swampy area or a bog.
Asked in Science
What is the function of euthrophication?
Asked in Pollution, Air Pollution, Water Pollution
Can fertilisers cause water pollution?
Yes they cause water pollution, as they are chemicals which are use to improved the quality and quantity of crops, but at last they settle at bottom of the crop, and get mixed with soil. And with rain they gets dissolved with soil , later when the rain water gets down under soil , they also get mixed in the water and cause water pollution.
Asked in Ecology and Bionomics
What might cause an algal bloom to occur in a lake?
Algal blooms are usually caused by excess phosphorous in lakes; nitrogen in oceans. When a limiting nutrient is added in excess to a marine ecosystem, it is called eutrophication (cultural eutrophication if caused by sewage, fertilizer runoff, etc.). With the addition of an algae's limiting nutrient, its carrying capacity is effectively raised and the population grows. As a result of algal exponential growth, decomposers at the benthos region also experience growth. In the decomposition process, oxygen is used; and in the case of eutrophication, oxygen levels can drop to the point where the environment is hospitable to other marine life.
Asked in Animal Life, Drinking Water
How can too much nutrients be pollution in water?
How are industries polluting water resources?
Industry is a huge source of water pollution, it produces pollutants that are extremely harmful to people and the environment. Many industrial facilities use freshwater to carry away waste from the plant and into rivers, lakes and oceans. Pollutants from industrial sources include: Asbestos - This pollutant is a serious health hazard and carcinogenic. Asbestos fibres can be inhaled and cause illnesses such as asbestosis, mesothelioma, lung cancer, intestinal cancer and liver cancer. Lead - This is a metallic element and can cause health and environmental problems. It is a non-biodegradable substance so is hard to clean up once the environment is contaminated. Lead is harmful to the health of many animals, including humans, as it can inhibit the action of bodily enzymes. Mercury - This is a metallic element and can cause health and environmental problems. It is a non-biodegradable substance so is hard to clean up once the environment is contaminated. Mercury is also harmful to animal health as it can cause illness through mercury poisoning. Nitrates - The increased use of fertilisers means that nitrates are more often being washed from the soil and into rivers and lakes. This can cause eutrophication, which can be very problematic to marine environments. Phosphates - The increased use of fertilisers means that phosphates are more often being washed from the soil and into rivers and lakes. This can cause eutrophication, which can be very problematic to marine environments. Sulphur - This is a non-metallic substance that is harmful for marine life. Oils - Oil does not dissolve in water, instead it forms a thick layer on the water surface. This can stop marine plants receiving enough light for photosynthesis. It is also harmful for fish and marine birds. Petrochemicals - This is formed from gas or petrol and can be toxic to marine life.
Asked in Pollution
What element in fertilizers and some detergents contributes to water pollution and growth of algae and water weeds?
Asked in Health, Agriculture, Environmental Issues
What are effects of chemical fertilizers on human health?
The toxic chemicals found in fertilisers can be absorbed into the plants and enter the food chain via vegetables and cereals, although the biggest health risk is when the chemicals seep into the ground water which is then extracted for drinking water. This water can contain high levels of nitrates and nitrites and have been known to cause blue-baby syndrome (methemoglobinemia) and can also lead to miscarriage in pregnant women. Mercury, lead, cadmium and uranium are some of the toxic heavy metals that have been found in fertilisers and can cause distrubances of the kidneys, lungs and liver and cause cancer - depending on how much has been consumed!