Ozone – Flashcards

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question
Ozone is formed when _______. a. two oxygen molecules combine b. an individual oxygen atom combines with an oxygen molecule c. ultraviolet radiation breaks apart four oxygen molecules d. oxygen molecules are broken into separate atoms Please select the best answer from the choices provided
answer
B
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Depletion to the ozone layer can cause changes to the biogeochemical cycles. Please select the best answer from the choices provided
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T
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The environmental and health risks associated with ground-level ozone are greater than the environmental and health risks associated with the depletion of the ozone layer. Please select the best answer from the choices provided
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F
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The ozone layer helps to sustain terrestrial life by __________. a. absorbing incoming UV radiation b. keeping levels of ozone in the troposphere low c. maintaining the Earth's temperature structure d. all of the above Please select the best answer from the choices provided
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D
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Over 95% of incoming UV-B radiation is absorbed in the stratosphere. Please select the best answer from the choices provided
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T
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How is good (stratospheric) ozone formed? a. combining an oxygen molecule (O2) an atom of chlorine (Cl) b. combining a single oxygen atom (O) with an oxygen molecule (O2) c. combining two single oxygen atoms d. breaking apart an oxygen molecule Please select the best answer from the choices provided
answer
B
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How does the ozone layer affect life on Earth? a. causes respiratory illness b. increases photosynthesis in plants c. causes damage to living tissue d. filters out harmful ultraviolet radiation Please select the best answer from the choices provided
answer
D
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