F.Sc F.A ICS I.Com English XII Essay Pollution With Quotations

F.Sc F.A ICS I.Com English XII Essay Pollution With Quotations 2nd Year Essay Notes Online Taleem Ilm Hub

Note: To find other essays please click on this link Essays.
Note: To find quotations for other essays please click on this link Quotations for Essays.

Pollution means contamination of Earth's environment with materials that interfere with human health, the quality of life, or natural functioning of ecosystems (living organisms and their natural surroundings). Although some environment pollution is a result of natural causes such as volcanic eruptions, yet most is caused by human activities. People are exploiting the nature in many ways and creating pollution everywhere. Mankind today appears like a foolish man who is wielding, an axe at the branch of the tree on which he is sitting.

Pollution exists in many forms and affects many different aspects of Earth's environment. Much pollution comes from specific, localized and identifiable sources, such as sewage pipelines, or industrial smokestacks. Another kind of pollution comes from dispersed or uncontaminated sources, such as contaminated water runoff from urban or automobiles emissions.

Human contamination of Earth's atmosphere can take many forms and has existed since human first began use fire for agriculture, heating and cooking. It can be seen in the indiscriminate cultivation of land, destruction of forests and in the annihilation of active species. Man's voracity has upset the balance of nature. Earth provides enough to satisfy every man's need, but not for every man's greed". Urban air pollution is commonly known as smog ( a form of air pollution by the photochemical reaction of sunlight with hydrocarbons and nitrogen oxides that have been released into the atmosphere, especially by automotive emissions). Air Pollution has developed into a major health hazard in the modern time. As pollutants build up in atmosphere, sulfur and nitrogen oxides are converted into acids that mix with rain. This acid rain falls in lakes and on forests, where it can lead to death of fish and plants, and damage entire ecosystems. Eventually, the contaminated lakes and forests may become lifeless.

One of the greatest challenges caused by air pollution is Global Warming, an increase in Earth's atmosphere due to the buildup of certain gases such as carbon dioxide. With the heavy use of the fossil fuels in the modern era, atmospheric concentration of carbon dioxide have risen dramatically. Carbon dioxide and other gases, known as green house gases, reduce the escape of heat from the plant and block the radiation coming from the sun. The average global temperature are expected to rise because of this green house effect and it would make the Earth warmer, change climate patterns, affect crop production, disrupt wildlife distributions and raise the sea level.

Sewage, industrial wastes, and agriculture chemicals such as fertilizers and pesticides are the main causes of water pollution. In developing nations, more than 95 percent of urban sewage is discharged untreated into rivers and bays, creating a major health hazard. Water runoff, a major source of pollution, carries fertilizing chemicals such as phosphates and nitrates from agricultural fields and yards into lakes, streams and rivers. The water body may then become choked with decaying algae, which severely depletes the oxygen supply. It causes the death of fish and other aquatic life.

Erosion, the wearing away of topsoil by wind and rain, also contributes to water pollution. Soil and silt ( a fine sediment) washed from logged hillsides, plowed fields, or construction sites, can clog waterways and kill aquatic vegetation.

Soil is a mixture of mineral, plant and animal materials that forms during a long process that may take thousands of years. It is necessary for most plant growth and is essential for all agricultural production. Soil Pollution is a buildup of toxic chemical compounds, salts, pathogens (disease-causing organism) or radioactive materials that can affect plant and animal life. The massive use of chemical fertilizers, pesticides in poisoning the natural processes occurring within the soil and destroying the useful organisms such as bacteria, fungi and other microorganisms.

Unwanted sounds, or noise, such as that produced by airplanes, traffic or industrial machinery is considered a form of pollution. Noise pollution is at its worst in densely populated areas. It can cause hearing loss, stress, high blood pressure, sleep loss, distraction and lost productivity. Noise pollution can be overcome by adding insulation and sound proofing to doors, walls and ceilings, and also by using air protection, particularly in industrial working areas.

The problem of pollution and other environmental hazards calls for the immediate measures to save the future generations from the devastating predicament of pollution. We must maintain and establish a beneficial relationship with the rest of the nature. So that we may not pollute the Earth's atmosphere to such an extent that deformed humans are only left to enjoy the prospects on the industrial and technological progress. We must acknowledge the sanctity of Earth, because while the Earth remaineth, seedtime and harvest, and cold and heat, and summer and winter, and day and night shall not cease,