Chemistry, 04.12.2019 10:31 stuckonquestions
Brainliest answer! an earth-like planet is 500 light years away. why is this an obstacle for a manned space mission?
a. the cost is too low
b. there is no oxygen in space
c. humans cannot live for 500 years
d. there are no plans to send a human
Answers: 1
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Brainliest answer! an earth-like planet is 500 light years away. why is this an obstacle for a mann...
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