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Biology, 21.06.2019 14:30
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 10:00
What organ is the first to receive nutrients that have been absorbed from the digestive tract?
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Biology, 22.06.2019 17:00
Some scientists argue that global warming is related to buming fossil fuels to produce energy o increased use of fertilizers loss of forested areas a of the above
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Biology, 23.06.2019 00:30
Aspecies of butterfly has alleles for wing color that are either blue or orange. when a blue butterfly and an orange butterfly mate, their offspring have wings that are both blue and orange. explain the process through which wing color is expressed.
Answers: 3
What could the hardness of a mineral be if it can be scratched by a cent coin?...
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