Question

which is the process by which a solid changes to a liquid?
condensation
evaporation
melting
sublimation

Explanation:

To solve this, we analyze each option:

• Condensation: Gas to liquid. Eliminate.
• Evaporation: Liquid to gas. Eliminate.
• Melting: Solid to liquid (heat added, e.g., ice to water). Correct.
• Sublimation: Solid to gas (e.g., dry ice to CO₂). Eliminate.

Answer:

C. melting