Question

which box represents the phase change \melting\? a b c d 3 more questions to go after level: 1

Explanation:

Step1: Recall phase - change definitions

Melting is the phase - change from solid to liquid.

Step2: Identify the arrow in the diagram

In the given phase - change diagram, the arrow going from the "Solid" box to the "Liquid" box represents melting.

Answer:

The arrow going from the "Solid" box to the "Liquid" box (assuming it is one of the labeled arrows in the options, if not specified further in the options, we know the general direction for melting in the diagram). If we assume the arrows are labeled in the diagram and one of the options corresponds to the arrow from solid to liquid, that would be the correct answer. Without seeing the specific labels on the arrows in the options precisely, we can't give a letter - based answer like A, B, C, or D, but conceptually it's the arrow from solid to liquid.