Final answer:
In the Sun's convective zone, energy is transported primarily by the movement of hot plasma in convection cells, where it rises, cools, and then sinks in a continuous cycle until it reaches the surface and is emitted as light and heat.
Step-by-step explanation:
As energy is transferred through the convective zone of the Sun, a process similar to what we observe in a pot of boiling water occurs. The energy generated in the Sun's core is transported outward by radiation until it no longer can efficiently move through the dense solar material. At this point, about 70% of the distance from the center to the surface, convection becomes the dominant mode of energy transport.
Large convection cells form in this outermost layer of the solar interior, where hot plasma rises to the surface of the Sun, releases its energy into space, cools, and then sinks back down to be reheated and rise again. This process of rising and sinking hot gas efficiently transports the energy to the Sun's surface, where it is eventually emitted as light and heat.