Surface tension is the result of water molecules with strong force.

The surface tension of any liquid is due to the attraction between the inter molecular forces.

Explanation:

Strong inter molecular forces of attraction produces strong surface tension. If the hydrogen bond between the molecules gets disrupted then the surface tension also decreases.

When a liquid drops onto the floor then it assumes a spherical shape because the surface tension is minimum when the liquid assumes the spherical shape. Water has high surface tension and is important to environment.