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Subject :NSO    Class : Class 3

Which of the following statements is correct?

A Digestion of carbohydrates starts in stomach.
B The process of taking in carbon dioxide and giving out oxygen is called respiration.
C In a normal man, at rest, heart beats 75 times per minute.
D Skin is the largest sense organ of our body.


how

Ans 1:

Class : Class 5
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