Physics, 14.10.2020 01:01, payshencec21

Which question asks for an opinion? A. Can people who visit Mars use the resources there to fuel a return
trip to Earth?
B. How much more radiation reaches Mars's surface than reaches
Earth's surface?
C. Is it a good idea to try to establish human colonies on Mars?
D. Is it possible to establish a human colony on Mars?

Answers: 1

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Which question asks for an opinion? A. Can people who visit Mars use the resources there to fuel a...