1. | water pollution - pollution of the water in rivers and lakespollution - undesirable state of the natural environment being contaminated with harmful substances as a consequence of human activities | ------------------------------------------------- ------------------------------------------------- http://www.thefreedictionary.com/Water+pollutant ------------------------------------------------- ------------------------------------------------- Effects of Water Pollution By Jared
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Water pollution is the contamination of water bodies such as lakes‚ rivers‚ oceans and beaches. This occurs when large factories dump their waste products into the water. Water has the ability to carry many pathogens and bacteria. Because of this‚ water is responsible for many deaths and illnesses. This fact was discovered a long time ago when many people fell sick‚ and after tests‚ it was realized this was because of the drinking water. People‚ even back in the ancient times‚ would suddenly become ill
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97% of the water on the Earth is salt water and only 3% is fresh water which the majority of human uses require; slightly over two thirds of this is frozen in glaciers and polar ice caps. The remaining unfrozen fresh water is found mainly as groundwater‚ with only a small fraction present above ground or in the air. However‚ water is now being heavily polluted by nobody else but human. So what are the causes and effects of water pollution? The causes of water pollution vary. However‚ we can sum
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Mr. Todd 12 September 2011 “A Word Is Only a Word” The word friend means exactly what it is‚ just a word. The pure substance behind the word no longer bares any true meaning and feeling behind it. I have learned to limit the use of the word and can only call a select few a true friend. Growing up I thought I was popular because I had so many friends. However little did I know that instead of calling these people friends‚ I should have substituted the word for acquaintances‚ or in the future
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transitions has Earth gone through and why? The young earth was anything but habitable. Radioactive elements decaying within its mass and impacts from debris raining down form space generated intense heat. There was no life during this era. Is called the Hadean era and was formed about 4.5 billion years ago. Hadean comes from the Greek word Hades which means “Hell”. That’s how hot the Earth’s temperature was. The next phase in the Earth’s history was the Archean era. It existed from about 2.5
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ships and trains account for 90% of the cancer risk associated with air pollution” (europa.eu). Air pollution is the introduction into the atmosphere of chemicals‚ particulates‚ or biological materials that cause discomfort‚ disease‚ or death to humans‚ damage other living organisms such as food crops‚ or damage the natural environment or built environment. The Earth is surrounded by a blanket of air that’s polluted with gases from the atmosphere such as the industries‚ agriculture and traffic‚ as well
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Industrial Pollution Industrialization has been the hallmark of human progress. However‚ industries have become to the biggest issue of environmental pollution. Industrial pollution is pollution that can be directly linked with industry‚ in contrast to other pollution sources. This form of pollution is one of the leading causes of pollution worldwide. Industries release a host of toxic gases into the atmosphere‚ and gallons of liquid waste into the seas and rivers. Some of the effluents percolate
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Save the tigers Someday‚ we may never see tigers again because tigers are on the critically endangered list‚ which is why the National Zoo was celebrating Global Tiger Day. This is happening because of poaching and habitat changes. Large plantations have replaced a lot of tiger habitat in several tropical range countries. Tigers occupy only around 7 percent of their historic range. The current wild tiger population is at as few as 3‚200 tigers‚ including only about 400 Sumatran tigers‚ which are
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I From Hunting and Gathering to Civilizations‚ 2.5 million–1000 B.C.E.: Origins Overview. The first human beings appeared in east Africa over two million years ago. Gradually humans developed a more erect stance and greater brain capacity. Early humans lived by hunting and gathering. The most advanced human species‚ Homo sapiens sapiens‚ migrated from Africa into the Middle East‚ then into Europe‚ Asia‚ Australia‚ and the Americas. Over time‚ they learned to fashion tools and weapons from stone
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Pollution - Environmental pollution is any discharge of material or energy into water‚ land‚ or air that causes or may cause acute (short-term) or chronic (long-term) detriment to the Earth ’s ecological balance or that lowers the quality of life. Pollutants may cause primary damage‚ with direct identifiable impact on the environment‚ or secondary damage in the form of minor perturbations in the delicate balance of the biological food web that are detectable only over long time periods. Until relatively
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