Biology, asked by shagun5852, 9 months ago

what is normal breathing rate of humans?why does rate of breathing increase 20 to 25 times during vigorous exercise ?

Answers

Answered by sarmadh230

1

Answer:

The common human breathing rate is 12 to 25 breaths per minute

Explanation:

Answered by diptidalai18182

0

Answer:

normal rate of 20,000

Explanation:

By doing exercise heart pumps more blood

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