During exercise or other hard physical works the breathing rate may increase up to:

A ) 30–40 times per minute ✅

B ) 50-60 times per minute

C ) 50-55 times per minute

D ) 60-70 times per minute

Related Questions
  1. In humans and other higher animals, the exchange of gases is carried out by:
  2. "World No Tobacco Day" is celebrate on:
  3. Other name of voice box is;
  4. Where does the gaseous exchange occur in humans?
  5. A disease involving the breakdown of air sacs of the lungs is;
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