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Biology, 27.07.2019 00:00 rsetser6989
True or false? aids is now classified as a chronic condition
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Biology, 21.06.2019 14:30, Franklyn3220
Why are small quantities of chlorofluorocarbons so harmful to the ozone layer? a. the chlorofluorocarbons act like ultraviolet radiation causing large amount of ozone to be produced. b. the chlorine from the chlorofluorocarbons reacts with free molecules of oxygen causing a stop in ozone production c. free oxygen atoms can replace the chlorine in chlorine monoxide, releasing a free atom of chlorine which can then recombine with an oxygen atom in ozone, destroying more ozone. d. chlorofluorocarbons absorb ultraviolet radiation, preventing the formation of ozone select the best answer from the choices provided
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Biology, 22.06.2019 00:30, Piglets1228
When analyzing tree rings, what do scientists assume a thin ring indicates?
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