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symbo symbo
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Posts: 1970
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7 years ago
What fraction of the total mass of the Earth's atmosphere is contained in the troposphere, the lowest layer of the Earth's atmosphere?
   A)  50%    B)  25%    C)  10%    D)  75%
Textbook 
Discovering the Universe

Discovering the Universe


Edition: 7th
Authors:
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discovererdiscoverer
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7 years ago
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symbo Author
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7 years ago
You make an excellent tutor!
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this is exactly what I needed
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Thanks for your help!!
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