Multiple Choice
How is it possible that we have a rock from Mars on Earth?
A) Astronauts traveled to Mars and brought back a sample.
B) Robotic spacecraft have traveled to Mars and sent back a sample.
C) A large impact ejected some pieces of Mars and they got caught in Earth's gravitational pull and landed on Earth.
D) There are no rocks from Mars on Earth.
Correct Answer:

Verified
Correct Answer:
Verified
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