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Subject :NSO    Class : Class 3

Which of the following statements is correct?

ADigestion of carbohydrates starts in stomach.
BHeart expands in size when air enters the body.
CCirculatory system transports blood from lungs to various parts of the body.
DKidneys, lungs and skin form the excretory system.


d

Ans 1:

Class : Class 4
d

Ans 2:

Class : Class 3
D

Ans 3:

Class : Class 3
D

Ans 4:

Class : Class 3

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