question_answer

When we press the bulb of a dropper with its nozzle kept in water, air in the dropper is seen to escape in the form of bubbles. Once we release the pressure on the bulb, water gets filled in the dropper. The raise of water in the dropper is due to:

A)  Pressure of water

B)  Gravity of earth

C)  Shape of bulb

D)  Atmospheric pressure

E)  None of these