The relative temperature of sunspots is lower than the surrounding temperature of the sun's surface. Since we adjust our camera's to the high temperature of the sun the relatively cooler sunspots appear black to us.
Sunspots are actually the colder regions on the sun's surface, due to which comparatively less radiations are emitted by these regions than the rest of the surface of the sun. That is why they appear to be black.
in the earth
The primary affect on the Earth is on our ionosphere
Yes.
Yes the photosphere is 100 times the diamater of the earth and large sunspots are larger than the Earth.
sunspots
Nothing Much.
Sunspots
The Earth's ionosphere and sunblock or sunscreen.
sunspots
yes
Sunspots