Question

surface tension is the property of water in which... water tends to be see - through. water molecules at the surface tend to stick together. water spills easily.

Explanation:

Surface tension is a property of liquids where the molecules at the surface have stronger intermolecular forces (cohesion) compared to those in the bulk. This causes the surface molecules to "stick together" and form a sort of "elastic skin". Transparency (water being see - through) is related to the optical properties of water and not surface tension. Spilling easily is more related to viscosity and the shape of the container rather than surface tension.

Answer:

water molecules at the surface tend to stick together.