Chapter 19: Respiration & Food Energy - Science Mcqs for Grade 7

Q.  When we exhale

a. the diaphragm is pushed up and the rib cage is pushed downwards
b. the diaphragm is pulled down and the rib cage is pushed downwards
c. the diaphragm is pulled down and the rib cage is pulled upwards
d. the diaphragm is pushed upwards and the rib cage is pulled upwards


ANSWER: See Answer
 
No explanation is available for this question!
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