The equator divides the northern hemisphere from the southern hemisphere.
It is called a great circle and the plane that circle makes must pass through the geometric center of the globe. The largest circle that can be drawn round the Earth is the great circle round its middle, the "equator" this is because the spinning of the earth makes it 'fatter' round the middle.
because earth is also round
An imaginary line which runs round the globe, called the "equator".
The earth is approximately a sphere (round like a ball). From any direction, its outline will be a circle.
Possibly you mean The Equator, which is the imaginary line which runs round the Earth halfway between the poles.
a circle, because there is no air in space, and Earth is round so, air is round too.
The reason is because it is in the middle of the earth so it makes the biggest, most round circle, (around the Earth). it has the farthest to go around thus creating a perfectly round circle of latitude around Earth........................(i'm 13)
it's round like a circle. It's the shape our earth is in.
Earth is round because of the gravity around it makes it all shaped in the old or ''new''earth is now what we call a sphere or a ball not a circle because that is only 2D not 3D.
A circle has no corners. :) It just goes round and round and round...
because if it had 4 straight lines instead, we would call it a rectangle.
Circle in the Round was created in 1979-11.