Question

When we drink a soft drink with the help of a straw what forces the liquid up in the straw

Answer 1

BASICALLY ATMOSPHERIC ACTS ON THE STRAW

Answer 2

When we drink with a straw we suck the air and the air inside and it goes to our lungs and the pressure inside the straw decreases. Then the atmospheric pressure exerts force and the drink goes to the straw and then to our mouth

So basically it's the atmospheric pressure which forces the drink upwards.

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