How do the layers of the sun relate to energy movement and solar phenomena?

The center of the Sun, called the core, is made of very dense gas, with temperatures reaching abuot 15 million degrees Celsius. Under such high temperatures, some hydrogen particles collide and combine to form helium in a process called fusion. This process releases energy that travels through the core by radiation.

Energy radiates outward from the core, the next layer is called the radiative zone. Energy from the core moves through this layer by radiation. Temperatures in this layer aren't high enough for fusion to happen.

The next layer is the convection zone. In the convection zone, energy moves mainly by convection. Rising currents of hot gas in the convection zone carry energy toward the sun surface.