Question

PLEASE HELP ON MY FINAL

Which of the following factors have been most influential in allowing manned space exploration?

A- design of rockets capable of escaping earth’s gravitational pull
B- ability to turn food into pills and powders so they can be eaten in space
C- development on powerful batteries which provide light for astronauts to use in the darkness of space
D- creation of atmospheric systems that provide oxygen while absorbing carbon dioxide

Answer 1

The answer is D- creation of atmospheric systems that provide oxygen while absorbing carbon dioxide

Step-by-step explanation:

By using elimination of choice that answer seems the most accurate.