Hindi, asked by Shakti1260, 5 months ago

how to write a welcome letter to our grandparents in hindi

Answers

Answered by XxxitzstylishgirlxxX
1

Answer:

When you breathe in (inhale), air containing oxygen enters your windpipe, passes through the bronchi and eventually reaches the air sacs. These air sacs, called alveoli, are responsible for gas exchange.

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