Which of the following has placed Martian rocks in the hands of scientists on Earth?
A) A rover on Mars sent a sample back to Earth.
B) A sample return mission by the former Soviet space exploration program.
C) Rocks brought back by astronauts from the Moon whose Martian origin was established by their chemical makeup and red color.
D) Meteorites collected from Antarctica,the gases within them indicating that they were blasted from Mars by an impact.
Correct Answer:
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