When a solid compound dissolves in water,
a. it breaks up into individual crystals.
b. it always conducts electricity.
c. its particles surround individual water molecules.
d. each of its particles becomes surrounded by water molecules.

The answer is d. Each of its particles becomes surrounded by water molecules.

Notice that when you dissolve a solid compound in the water, it is no longer visible in or eyes, it mixes in the water, it is because it is being divided into smaller particles and each particles were surrounded by the water molecules.

Rain is pulled by gravity which is a non contact force