Question

multiple-choice question
how can a solid turn to liquid?
decrease (lower) the temperature.
increase the temperature.

Explanation:

The phase change from solid to liquid is called melting. This process requires adding thermal energy, which is achieved by increasing the temperature, allowing the solid's particles to break free from their fixed structure and move more freely as a liquid. Lowering temperature would cause a liquid to solidify, not the reverse.

Answer:

Increase the temperature.