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Single Answer MCQ
Q-00045958

What is a significant short-term effect of physical activity on the respiratory system?

1

Decreased lung capacity

2

Increased breathing rate

3

Reduced oxygen intake

4

Lowered heart rate

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Sandeep Chaturvedi

Sandeep Chaturvedi

CBSE Social Science & Humanities Reviewer

Social science and humanities educator with 14+ years of experience reviewing CBSE SST, economics, commerce, arts, and vocational content.

M.A. HistoryM.A. Political ScienceB.Ed.

Answer and Solution

Answer

B. Increased breathing rate

Solution:

The correct answer is 'Increased breathing rate'. During physical activity, the body's demand for oxygen rises, causing a temporary increase in breathing frequency to meet this demand.

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