In a lava lamp, a waxy substance rises and falls repeatedly. what causes the waxy substance to rise? check all that apply.

The waxy substance is warm. The waxy substance is less dense than the surrounding liquid.

Explanation:

Generally, a lava lamp is made up of wax mixture and a clear surrounding liquid. In principle, the wax in the lava lamp is warmer than the surrounding liquid. In addition, the density of the wax mixture is usually less than the surrounding liquid. When the wax mixture is warmed, it flows through the clear surrounding liquid and exchange heat energy with the liquid.

since electrons are negative the answer is neagtaive