Because its air we cant see it thats why its clear because it would be scary if we were able to see air! :)
I’m pretty sure it would be B but it could also be D
Because it can catch another germ or virus
Answer:
if you repeat the same exercise, the body works more efficiently and burns more calories to experience different types of exercise.
Explanation:
<em>o</em><em>p</em><em>t</em><em>i</em><em>o</em><em>n</em><em> </em><em>3</em>
Menstruation? Idk if that is right, but it sounds like someone started their period.