What Causes Acid Rain? One of the main causes of acid rain is sulfur dioxide. Natural sources, which emit this gas, are Volcanoes, sea spray, rotting vegetation and plankton. However, the burning of fossil fuels, such as Coal and oil, are largely to be blamed for approximately half of the emissions of this gas in the world. When sulfur dioxide reaches the atmosphere, it oxidizes to first form a sulfate ion. It then Becomes sulfuric acid as it joins with hydrogen atoms in the air and falls back down to earth. Oxidation occurs the most in clouds and especially in heavily polluted air where other compounds such as ammonia and ozone help to catalyze the reaction, changing more sulfur dioxide to sulfuric acid. However, not all of the sulphur dioxide is changed to sulfuric acid. In fact, a substantial amount can float up into the atmosphere, move over to another area and return to earth unconverted. In the following pages I will show the effects of acid rain on: · Effect on Trees and......

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Title: Acidf Rain
Approximate Word Count: 1696
Approximate Pages: 7 (250 words per double-spaced page)

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