The normal range of breathing rate per minute in an average adult person at rest is:

9-12

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15-18

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21-24

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30-33

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Solution

The correct option is B
15-18

The correct option is B.
Explanation for the correct option:
Option B:
Breathing (or ventilation) is simply the process of moving air into and out of the lungs to facilitate gas exchange with the internal environment, mostly by bringing in oxygen and flushing out the carbon dioxide.
The normal breathing rate range per minute in an average adult person at rest is 15-18 in a disease-free condition.
Final answer: The normal range of breathing rate per minute in an average adult person at rest is 15-18.

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Similar questions

Q. Normal range of breathing rate per minute in an average adult person at rest is.

Tick the correct answer:

(a) In cockroaches, air enters the body through

(i) lungs

(iii) spiracles

(iv) skin

(b) During heavy exercise, we get cramps in the legs due to the accumulation of

(i) carbon dioxide

lactic acid

alcohol

(iv) water

(i) 9-12

(ii) 15-18

(iii) 21-24

(iv) 30-33

(d) During exhalation, the ribs

(i) move outwards

(ii) move downwards

(iii) move upwards

(iv) do not move at all

Question 5 (c)
Tick the correct answer:
(c) Normal range of breathing rate per minute in an average adult person at rest is:
(i) 9 – 12
(ii) 15–18
(iii) 21–24
(iv) 30–33

Q. Question 11
On an average, an adult human being at rest breathes 15–18 times per minute. The breathing rate, however, may differ under different conditions. Arrange the following activities given in the box in order of increasing breathing rates and give reason for your answer.

Q. What is the rate of breathing per minute in an adult when he is at rest?

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