Question

which of the following observations best demonstrates waters special property of cohesion? a. a spoon held near a stream of water from a tap deflects the water towards itself. b. a rainbow forms after a rain storm. c. water forms droplets of dew on a spider web in the morning.

Explanation:

Cohesion is the attraction between like - molecules. Water molecules stick to each other. Dew drops on a spider web form spherical droplets because of water's cohesive forces, which minimize the surface area. Option A is adhesion (attraction between unlike - molecules, water and spoon). Option B is due to light refraction and dispersion, not cohesion.

Answer:

C. Water forms droplets of dew on a spider web in the morning.