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Question
Which of the following enables us to drink a liquid through a straw?
Which of the following enables us to drink a liquid through a straw?
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Solution
The correct option is C Atmospheric pressure
When we suck on a straw stuck into a liquid, we actually suck the air out of the straw. This decreases the air pressure inside the straw. The higher atmospheric pressure outside forces the liquid to go up into the straw, and into our mouth. Thus, we are able to drink the juice or liquid using a straw.
Atmospheric pressure
When we suck on a straw stuck into a liquid, we actually suck the air out of the straw. This decreases the air pressure inside the straw. The higher atmospheric pressure outside forces the liquid to go up into the straw, and into our mouth. Thus, we are able to drink the juice or liquid using a straw.
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