Answer:
since for some reason I cant delete my answer I'm going to edit it.
Your breathing rate goes up when you exercise and slows down when you sleep.
Answer:
Okay can you give me the question and the choices if any.
Explanation:
Answer:
B. 0.002 mm
Explanation:
(40/20 000) = 0.002
Thenks and mark me brainliest :))
The answer is B)Atmosphere