We use a straw to drink juice from a glass. What makes this possible?
A
Mass of the liquid
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B
Volume of the liquid
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C
Atmospheric pressure
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D
Gravitational pull
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Solution
The correct option is C Atmospheric pressure When we suck a liquid using a straw, a low pressure region is created inside the straw. The atmospheric pressure pushes the liquid from a high pressure region to a low pressure region, helping us to drink the juice.