Question

why does the water run out on removing the finger from the top of the straw​

Answer 1

Answer:

Sealing the top of a straw with your finger stops air entering and exerting a downward force on the liquid, leaving only the upwards force of air pressure from below. This upwards force is stronger than the force of gravity pulling down on the liquid

Explanation:

hope this helps you...

Answer 2

Answer:

when the finger is placed on the straw there is suction created. thus holding the water.

Explanation:

when the finger is removed the suction is no more thus the water runs out on removing the finger from the top of the straw