In what direction does the force act on a molecule at the surface of a liquid? Explain.

Why does the surface of a liquid have a tendency to minimize its area?

Explain why water does not run out of a dropper unless its rubber bulb is pressed.

If for a liquid in a glass vessel,the force of cohesion $(F_C)$ is twice the force of adhesion $(F_A)$,then which of the following statements are correct?
$(A)$ The meniscus will be convex.
$(B)$ The liquid will wet the glass.
$(C)$ The angle of contact will be obtuse.
$(D)$ There will be capillary descent in a glass capillary dipped in the liquid.
Correct option$(s)$ is/are:

In a glass capillary tube,the shape of the surface of the liquid depends upon:

What are cohesive forces?