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Chemical Environmental Engineering Mcqs
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>> The average thickness of ozone layer in stratosphere is about _______________ dobson unit (DU)?
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Q. The average thickness of ozone layer in stratosphere is about _______________ dobson unit (DU)?
a.
20
b.
230
c.
750
d.
1500
ANSWER: 230
Answer & Explanation
No explanation is available for this question!
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