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Biology, 03.02.2020 08:53 catsRlife4573
What percentage of ozone is contained in the stratosphere?
a. 10%
b. 50%
c. 80%
d. 90%
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Answers: 1
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What percentage of ozone is contained in the stratosphere?
a. 10%
b. 50%
...
a. 10%
b. 50%
...
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