class 7 ncert
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Answer:
A is right answer. A is the process of exhalation.
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Explanation:
A is showing the process of inhalation as the diaphragm goes downward and air is coming into our body so it's showing the process of inhalation on the other hand figure b is showing the process of exhalation as the diaphragm goes upward and here is is coming out from the body
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