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How do you test the presence of water vapour and heat in the exhaled air? |
Answer» 1. Keep your palm around an inch away from your nose. 2. Feel you breathing out. 3. Do not remove your palm until you have finished the activity. 4. Breathe steadily for 1 – 2 minutes. 5. Now take a piece of any fruit. 6. Chew and before swallowing it keep the fingers of the other palm on your neck, now swallow it. |
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