Pls answer the third question

3. When the nozzle of a syringe is dipped in a liquid and its piston is withdrawn, the liquid pushes up into the syringe. Give reason.

Dear student, The pressure of the liquid forces the liquid to move into the syringe.When the plunger is withdrawn the pressure inside the syringe decreases and the liquid from high pressure (inside body) area moves into the liquid at low pressure area (syringe).