What shape is the sky?
It is a spear, because the sky only goes as far as the atmosphere, thus making it a spear, with the center carved out of it, the center being the Earth.
it like has no definable shape,it continues but if I must answer probably the top half of a globe
It's not a shape
a circle i geuss
The same shape as the earth: an oblate spheroid.
A rhombus. Duh.