Breathing

Q. A human being normally breathes ___ times per minute.

1. 40
2. 72
3. 100
4. 12

Q. Assertion - Difference in the partial pressure of a gas between two systems creates pressure gradient.
Reason - Gas moves from a region of high pressure to the region of low pressure.

1. Both the assertion and reason are true and the reason is the correct explanation of the assertion
2. Both assertion and reason are true but the reason is not the correct explanation of the assertion
3. The assertion is true but the reason is false
4. Both the assertion and reason are false

Q. A human being normally breathes ___ times per minute.

1. 40
2. 100
3. 72
4. 12