Which of the following is a
challenge astronauts face due to the vacuum of space?
A. extremely high gravity
B. no air to breathe
C. dangerously high amounts of air pressure
D. The vacuum of space does not provide a
challenge to astronauts.
B is the answer because due to there being no air in space, they have to create suits and a ship that can withstand those elements so they do not die of no oxygen