Respuesta :
Answer:
to counter the effects of zero gravity on their muscles and bones
Explanation:
Zero G's weaken the body, and muscular deterioration happens faster
Answer:
B: To counteract the effects of zero gravity on their muscles and bones.
Explanation:
In space, muscles deteriorate faster because zero gravity means they don't have to work as hard (Ex you leg muscles don't have to work as hard to walk around)
I hope I could help!! <3