Question

The breathing rate of an adult human at rest is __________.

• A. 10 times
• B. 16 times
• C. 30 times
• D. 4 times

Answer 1

The correct option is B 16 times

The number of times a person breathes in a minute is termed the breathing rate. On average, an adult human being at rest breathes in and out 15-18 times in a minute. During heavy exercise, the breathing rate can increase up to 25 times per minute.

So, the correct answer is option B.