Answers: 3
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
Answers: 1
Biology, 22.06.2019 06:40, Weser17
Under the soviet system, the government a. controlled all forms of communication. b. allowed newspapers to print whatever they wanted. c. controlled editorials but not the reporting of news. d. encouraged access to a wide variety of news sources. select the best answer from the choices provided a b c d
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Biology, 22.06.2019 07:40, SkirrtCrackers
The third stage of cellular respiration is (2 points)
Answers: 2
Biology, 22.06.2019 08:00, rcmhargoux9546
Which best example best demonstrates the importance of having knowledge of evolutionary relationships? a. illustration of a plant b. organ transplantation between species c. blood donation from a human d. do you need sequence of an insect.
Answers: 1
Which of the following correctly identifies the most productive layer of a soil profile?...
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