Explanation:

• The formation of a spherical shape of the water drops can be explained by three factors, i.e., the surface tension of water, cohesive forces, and the ability of the water molecules to stick together.

• Surface tension is responsible for the shape of liquid droplets. Although easily deformed, droplets of water tend to be pulled into a spherical shape by the cohesive forces of the surface layer.

Hence option 2nd is correct.