Answered

The corona is the least dense layer of the sun's atmosphere. How do you think the density of the solar wind compares to the density of the corona?

Verified Answer :

Hagrid

The solar wind is a stream of
charged particles made mostly of electrons and protons that flows outward from
the Sun. It is caused by the hot solar corona expanding into the space. Corona
is denser than the solar wind due to its ionized charged particles. Because solar
winds are less dense than corona, they can travel 900km/s sometimes reaching
the ionosphere of the earth.