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The beginning of the (chlorofluorocarbons) era started in 1928, when ' were invented by a Du Pont chemist. ' were best known as "freons" and became famous as a safe, nonflammable refrigerant. It's invention became a great triumph when Freon took the place of sulfur dioxide or ammonia which was used as the working liquid in refrigerators. It eventu ....
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....s would be the function of a catalyst; a single chlorine atom involved in a chain reaction to destroy many ozone molecules.
Rowland and Molina eventually agreed that this thinning of the ozone shield can cause a catastrophe for Earth's living beings, including humans, by allowing large amounts of the deadly ultraviolet-B radiation to reach to Eart.... |
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Page count: 4 |
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