Each lung consists of around ______ million alveoli.
ہر پھیپھڑوں میں لگ بھگ ______ لاکھ الوولی ہوتا ہے۔
- 500
- 100
- 300
- None of these
Explanation
Each human lung contains approximately 300 million alveoli, providing a large surface area for gas exchange.
These tiny air sacs help in the efficient exchange of oxygen and carbon dioxide in the lungs.
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