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ozone layer is made by 3 oxygen element.Ozone layer is capable of blocking UVB(harmful UV ray).However,chlorofluorocarbons(CFCs) is depl..
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a really long confusing explination of how the solar system was established.
earth science is a really boring class.
See yogurt
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a..
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(1) A species of the mamal family often nocturnal, found primarily in the Southern Mountain regions. Known for ruthlessly altering the m..