Its a because northen subtropical jet stream are strong up theree than any where else
Prevailing winds are the planetary winds that are caused by the formation of giant convection cells over the earth. Prevailing winds blow from the hot regions of the earth, like the tropics, to the cold areas of the earth, like the temperate or polar regions, and from the cold areas back to the hotter regions.
Because the rays of the sun gives off a stronger brightness.
Also people want to see the effect of the eclipse and are dumb enough to stare at it, which u really can't due to such brightness.
Sphere because of the sun orbit around the solar system