Question

How does regular exercise help maintain a healthy respiratory system?

A) It helps cilia in the lungs eliminate mucus.

B) It helps lungs from becoming too large.

C) It helps lungs exchange gases at a slower rate.

D) It helps lungs become more efficient at gas exchange.

Answer 1

Letter D seems correct

Answer 2

Answer: Option D

Step-by-step explanation:

It helps lungs to become more efficient by improving the gas exchange in the lungs. Regular exercises improves the cardio-respiratory fitness making it easier for the heart to be supplied with oxygen.

Staying fit and active is important for the people who are suffering from cardio respiratory disorders must exercise regularly in order to keep their heart fit.

The people suffering from respiratory disorders such as blockage should walk and exercise regularly.