Question

ch. 24.2 guided reading
why do sunspots appear dark?

Explanation:

Sunspots appear dark because they are cooler regions on the Sun's surface. The magnetic fields in sunspots inhibit the normal convective flow of hot plasma, reducing the amount of heat reaching the surface in those areas. As a result, they are cooler than the surrounding regions and thus appear darker in contrast.

Answer:

Sunspots appear dark because they are cooler regions on the Sun's surface due to magnetic - field inhibition of convective heat flow.