The convective zone is the region of the Sun in which energy move through circulating currents of gases.
The convective zone is the outer most region of the interior of the Sun where energy is transported by circulating currents of gases (in a process called convection). The convection zone extends from the visible surface of the sun to a depth of about 200,000 km. The upper layer of this region, which is known as photosphere is where light (photons) is usually produced.