Worse, weightlessness can sometimes be downright unpleasant. your body gets upset and confused. your face puffs up, your nose get stuffy, your back hurts, your stomach get upset, and you throw up. if astronauts are able to survive a one- year journey to mars- the shortest possible trip to red planet-they will have to learn how to deal with this weird environment.
which of the following best expresses the main idea of the selection?
a. if astronauts were survive one-year journey to
b. worse, weightlessness can sometimes be downright unpleasant.
c. nose get stuffy, your back hurts, your stomach get upset, and you throw up.
d. will have to learn how to deal with this weird environment.