A student draws a model of one of the sun's layers. The student draws arrows to represent hot gas moving away from the center of the sun and other arrows to represent cool gas moving toward the center of the sun. Which layer does the model show

The model likely represents the convection zone of the sun, which is one of the outer layers. In the convection zone, hot gas (plasma) rises away from the sun's core because it is less dense when hot. As it nears the surface and radiates its heat into space, it cools down, becomes denser, and sinks back toward the center. This process is similar to the boiling water in a pot, where hot water rises, cools at the surface, and then sinks again, creating a convective loop. The convection zone plays a significant role in the transfer of energy from the interior of the sun to its surface.