Question

when you suck in air through which boiling tube does the air flow out of the apparatus ? Can you say why the air does not go out through the other boiling tube as well?​

Answer 1

Answer:

When we breathe in, then the inhaled air (fresh air) enters the glass tube and passes through the lime-water in boiling tube . And when we breathe out, then the exhaled air (coming from our lungs) passes through the lime-water in boiling tube . We continue to breathe in and breathe out for about five minutes.

Explanation:

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Answer 2

Answer:

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