Class 7 Science MCQs – Certification Test 1984

How We Breathe Quiz (Question 1984) – App & e-Book Download

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MCQ 1984: When we exhale:

the diaphragm is pushed up and the rib cage is pushed downwards
the diaphragm is pulled down and the rib cage is pushed downwards
the diaphragm is pulled down and the rib cage is pulled upwards
the diaphragm is pushed upwards and the rib cage is pulled upwards

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