Biology

Bart

26 June, 06:56

Astronauts have been exploring outer space in manned spacecraft since 1961. Which of the following would have made it very dangerous for people to explore outer space?

A.

if the Earth's orbit passed through dense meteoroid fields

B.

if there were fewer cosmic rays passing through the solar system

C.

if the asteroid belt was farther from the Sun

D.

if the Earth's orbit was more circular than Venus' orbit

+3

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