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Which skill, if it cannot be performed by a 3-year-old child, should alert the nurse that the child may be developmentally delayed?
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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, 21.06.2019 23:30
What is the importantence of the carbon and nitretan cycles in the environment
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Why is it important for everyone to work together to protect the environment?...
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