Environmental Sciences, asked by Mukt, 1 year ago

what are the causes of pollution

Answers

Answered by Đïķšhä
5
Causes of Air pollution. 1. Burning of Fossil Fuels: Sulfur dioxide emitted from the combustion of fossil fuels like coal, petroleum and other factory combustibles is one the major cause of air pollution. Pollution emitting from vehicles including trucks, jeeps, cars, trains, airplanes cause immense amount of pollution ...Gases like Sulfur dioxide and nitrogen oxide can cause acid rain. Water pollution in terms of Oil spill may lead to death of several wildlife species. 2. Human Health : The decrease in quality of air leads to several respiratory problems including asthma or lung cancer.
Answered by ruhiparveen2004
1
Air PollutionAir pollution is one of the major environmental problems in the world. The United States, which constitutes for approximately 5 percent of the world population, alone produces 25 percent of the total carbon dioxide in the world. Among the leading causes of air pollution, human transportation is by far the most prominent. Millions of vehicles dump tons of carbon dioxide in the atmosphere every single day.

Other than these vehicles, industrial plants, which release various harmful gases by burning fossil fuels, have a major share in polluting the air. It may come as a surprise for many, but agricultural activities, such as clearance of land for agriculture and use of pesticides, also contribute to this form of pollution to a significant extent. Water PollutionWater pollution is a broad concept which encompasses the pollution of inland water sources as well as ocean bodies on the planet. While inland water sources have been turned into virtual dumping sites owing to industrial pollution, ocean bodies bear the brunt of marine transportation and oil spills. The amount of sewage waste generated by a single household may not seem much, but if we take into consideration the fact that there are millions of households, things become serious. A significant proportion of waste produced in these homes is directed to water sources without being subjected to proper treatment.

Other than sewage, fertilizers and pesticides used in agriculture also contaminate water. They make their way to water sources through surface runoff during precipitation. As for ocean pollution causes, oil spills have a major role to play. The rising number of oil spills over the last few years is in fact a serious concern. Land PollutionLand pollution, also known as soil pollution, is actually the process wherein soil is contaminated due to the introduction of some harmful chemical substances in it. Among the various human activities which contribute to land pollution, agriculture and mining are perhaps the most prominent ones. When it comes to soil pollution, the list of contaminants includes Chlorinated Hydrocarbons (CFH), chromium, cadmium, lead, zinc, etc. Other than the practice of agriculture and mining, dumping of industrial and domestic waste in the soil also pollutes it.

The harmful chemicals, which are suspended in the air, get dissolved in rainwater and pollute the soil when they come to the Earth's surface in the form of acid rain. Similarly, surface runoff transports contaminants from one place to another and adds to land pollution. Owing to the interrelationship between these forms of pollution, one can't afford to ignore their causes and effects.
While many people are of the opinion that pollution is only caused due to chemical substances, the fact is that even energy in excess can cause pollution. Noise pollution and thermal pollution are the best examples of the same. If you are still not able to understand the seriousness of the issue, maybe a closer look at its harmful effects will come as an eye opener for you.
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