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Home Q & A Board Science-Related Homework Help Physics Astronomy
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hermiz hermiz
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6 years ago
During winter, the northern polar cap of Mars is made of
A) a layer of carbon dioxide ice
B) a layer of water ice
C) carbon dioxide ice overlaying water ice   
D) water ice overlaying carbon dioxide ice
Textbook 
Life in the Universe

Life in the Universe


Edition: 4th
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Life in the Universe, 4/E (Bennett, Shostak)
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DonskoyDonskoy
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6 years ago
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hermiz Author
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6 years ago
Thanks for your help!!
klyn
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Yesterday
You make an excellent tutor!
zsc999
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2 hours ago
Thank you, thank you, thank you!
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