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Question and Answer

The alveoli in human lung are 
(A) 3 crore
(B) 300 million
(C) 350,000
(D) 5 lakhs

Answer

Answer: B
Alveoli are the site of respiration inside the lungs. The human lungs have 300 million alveoli with a total area of about \({100 m^2}\) which is 50 times than that of the skin surface.
So, the correct answer is option B.
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