Chloro fluoro carbon compounds. (CFC) , also known as "Freon" (Freon) do not occur naturally. But as a human invention A source from the industry. And equipment used in everyday items such as refrigerators, air conditioners and sprays and so on. CFC, are composed of chlorine, fluoride and bromine, which are capable of destroying ozone in the normal-CFC in the earth's surface is made. react with other substances But when it absorbs ultraviolet radiation in the atmosphere, stratosphere lasting. Molecules are broken down to a single chlorine atom. And reacts with ozone gas Mono chlorine dioxide gas (ClO) and oxygen. If one Atomic chlorine destroys ozone molecules have a single one. Would not be a problem But one chlorine atom can destroy thousands of ozone molecules first time. When chlorine dioxide reacts with oxygen atoms mono single. Then a single chlorine atom again. Chain reaction like this, thus damaging the ozone layer continues. Today, although there is no limit to the type of gas that is less by 40% compared with 10 years ago, but the amount of chloro fluoro carbon continues to accumulate in. atmosphere There are also a source of thermal energy deposited on the surface of the Earth is about 0.28 watts per square meter.
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