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Home Q & A Board Science-Related Homework Help Physics
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doit_the_clown doit_the_clown
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7 years ago
Scientists have now examined rocks that came from Mars in their laboratories on the Earth because
A)   an orbiting spacecraft scooped up Martian dust during its passage by Mars and then returned to the Earth.
B)   several meteorites found in Antarctica are now thought to have been knocked off Mars and fallen to the Earth.
C)   spacecraft have been to the surface of Mars and have returned with samples of Martian rocks and soil.
D)   a large impact that occurred on the Martian surface early in its history created a vast dust cloud through which the Earth passes once per year, and samples of this dust have now been collected by the Space Shuttle.
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Discovering the Universe

Discovering the Universe


Edition: 7th
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Only two things are infinite, the universe and human stupidity, and I'm not sure about the former.

Albert Einstein
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hyponoticahyponotica
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7 years ago
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doit_the_clown Author
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7 years ago
Helped a lot
courtneyrmcd
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Yesterday
This helped my grade so much Perfect
7.prime7105
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2 hours ago
Good timing, thanks!
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