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.
d. water can dissolve other substances, such as sugar and salt.

Explanation:

Cohesion is the attraction between like - molecules. Water molecules stick together to form droplets. Option A shows adhesion (attraction between water and spoon), option B is due to light refraction, and option D is about water's solvent property. Water forming dew droplets on a spider web is because of the cohesion of water molecules to each other.

Answer:

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