The process by which water vapor changes to liquid water is called

a. freezing.

b. condensation.

c. melting.

d. evaporation.

The correct answer is b. condensation.

Freezing is when a liquid becomes a solid.

Condensation is when a gas (such as water vapor) becomes a liquid.

Melting is when a solid (like an ice cube) becomes a liquid.

Evaporation is when a liquid becomes a gas (such as water vapor).

B. condensation ...