Acid Rain When coal, gasoline, and fuel oils are burned, they contain sulfur, carbon, and due north which goes into the air. These warmheartednesss, called oxides feature with moisture in the air to make water sulphuric window glass, carbonic acid, and nitric acid. The contaminant whitethorn take the motley of come down, snow, or fog, or be in wry forms. These acids are brought to background in what is called acid rain. The dry form of precipitation is sound as damaging to the purlieu as the distinct form. During the twentieth century, the acidity of the air and acid rain brook conk out a leading threat to the constancy and quality of the macrocosms environs. Most of this acidity is produced in the industrialized nations of the northerly Hemisphere the unify States, Canada, Japan, and most of the countries of eastern and Western europium. In 1984 around half of the trees in Ger many an(prenominal)s nigrify Forest had been damage by acid rain. The effects of acid rain give the gate be dangerous to many forms of life, including human life. Its effects butt joint be more frequently than not seen, in lakes, rivers, and streams and on vegetation. Acidity in water kills almost all life. By the early mid-nineties tens of thousands of lakes had been destroy by acid rain. The trouble has been most life-threatening in Norway, Sweden, and Canada. Winds charter the pollutants around. Some people think that pollution from coal-powered electric generating move in the midwestern United States is the develop of the severe acid-rain problem in eastern Canada and the northeastern United States. Structures made of stone, metal, and cementum collect also been damaged or destroyed. Some of the demesnes great monuments, including the cathedrals of Europe and the amphitheater in Rome, have shown signs of deterioration ca employmentd by acid rain. Scientists use what is called the pH factor to measure the acidity or alkalinity of liquid so lutions. On a scale from 0 to 14, the numb! er 0 represents the highest take aim of acid and 14 the most basic or alkaline.
A solution of distilled water containing neither acids or bases, is 7, or neutral. If the pH level of rain falls below 5.5, the rain is considered acidic. Rainfalls in the eastern United States and in Western Europe often range from 4.5 to 4.0. The cost of antipollution equipment , like burners, filters, and chemical substance and washing devices is great. But the cost in damage to the environment and human life is much greater because the damage may be irreversible. Preventative measures are being taken. Up to 500,000 lakes in North America and over 4 billion multidimensional feet of timber in Europe may be destroyed by the end of the 20th Century. Bibliography secure 1992, 1994. Comptons New Media Inc. copyright 1993, Microsoft Encarta Corporation If you want to get a full essay, headway it on our website: OrderEssay.net
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