Question

why does the rate of breathing increase while walking up hill at a normal pace in the movement​

Answer 1

Answer:

circulation

Explanation:

Answer 2

Answer:

The primary reason this happens is due to the buildup of carbon dioxide in the body. As carbon dioxide levels accumulate in the body from exercise, it triggers us to breathe more rapidly via our respiratory system. This allows more oxygen to be taken in.

Explanation:

mark me brainlist please