Easy Science Class 9 Level 12

Why are alveoli important?

Alveoli क्यों महत्वपूर्ण हैं?

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Correct Answer

A. gas exchange के लिए / For gas exchange

Explanation

Step 1: Identify the concept: this is lungs structure. Step 2: Alveoli are thin walled air sacs where oxygen and carbon dioxide are exchanged. Step 3: Remember alveoli equals gas exchange sacs.

Step 1: concept पहचानें: यह lungs structure है। Step 2: Alveoli thin walls वाली air sacs हैं जहां oxygen और carbon dioxide exchange होता है। Step 3: Alveoli equals gas exchange sacs याद रखें।

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