Question

1. what is it called when liquid becomes a gas only at the surface of the liquid?

a. melting
b. freezing
c. condensation
d. magma
e. evaporation

Explanation:

• Option a: Melting is the process of a solid turning into a liquid, so it's incorrect.
• Option b: Freezing is a liquid turning into a solid, so it's incorrect.
• Option c: Condensation is a gas turning into a liquid, so it's incorrect.
• Option d: Magma is molten rock beneath the Earth's surface, not related to liquid - gas phase change at liquid surface, so it's incorrect.
• Option e: Evaporation is the process where a liquid changes to a gas only at the surface of the liquid.

Answer:

e. Evaporation