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Home Q & A Board Science-Related Homework Help Physics Astronomy
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hermiz hermiz
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7 years ago
The Northern hemisphere of Mars is at
A) a higher than average elevation and is covered with impact craters
B) a higher than average elevation and is relatively smooth
C) an average elevation and is covered with impact craters
D) a lower than average elevation and is relatively smooth
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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7 years ago
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hermiz Author
wrote...

7 years ago
Good timing, thanks!
apelton
wrote...

Yesterday
this is exactly what I needed
byehoe
wrote...

2 hours ago
Thanks
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