Which indicates that the clump of waxy fluid at the center of the lamp is moving downward rather than upward? it is less dense than the surrounding liquid. its molecules are losing kinetic energy. its molecules begin to slow down before they become faster. its temperature increases before it decreases again.

Option (b) is the correct answer.

Explanation:

The clump of wax at the center moves downward because its molecules loses kinetic energy.

As a result the molecules gain potential energy and thus, they come to rest in the downward direction.

Hence, we can conclude that the clump of waxy fluid at the center of the lamp is moving downward rather than upward is indicated by its molecules are losing kinetic energy.