Rita breathes out on a mirror and finds water droplets on it. This activity helps to conclude the fact that
A
Inhalation is faster than exhalation
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B
Water vapour is released during breathing
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C
Exhalation is faster than inhalation
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D
Both A and B
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Solution
The correct option is B Water vapour is released during breathing Carbon dioxide is released in the process of exhalation in large amount. When it is released, it is saturated with water vapour and this is the reason for water droplets in the mirror.
So the correct answer is 'water vapour is released during breathing'.