The solar wind appears to originate mainly from which regions of the Sun?
A) Sunspots
B) All over the surface,with no preferred location
C) Granulation cells
D) Coronal holes

Question

Quizplus · Accepted Answer

Coronal holes, which are regions of the Sun's corona that appear dark and relatively cooler in X-rays and ultraviolet radiation, are known to be the main source of the solar wind. These regions have open magnetic field lines that allow high-speed streams of charged particles to escape into space.

The Solar Wind Appears to Originate Mainly from Which Regions