Question

Which of the following factors have been most influential in allowing manned space exploration?
A.
development on powerful batteries which provide light for astronauts to use in the darkness of space
B.
creation of atmospheric systems that provide oxygen while absorbing carbon dioxide
C.
ability to turn food into pills and powders so they can be eaten in space

Answer 1

Answer:

creation of atmospheric systems that provide oxygen while absorbing carbon dioxide

Explanation:

Answer 2

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B) creation of atmospheric systems that provide oxygen while absorbing carbon dioxide.

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