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Subject :NSO    Class : Class 5

Refer the given figure showing respiratory system and answer the questions that follow.

a. Which of the labelled parts is protected with the rib-cage?
b. In which of these labelled parts, exchange of gases takes place?
(a) a-M b-L
(b) a-N b-L
(c) a-N b-N
(d) a-M b-N

Ans 1:

Class : Class 6
Ans is C because lungs are protected by the ribcage and exchange of gases happen in lungs' bronchioles.

Ans 2:

Class : Class 5

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