All meridians of longitude converge at the north pole, which is the northextremity of the Earth's rotational axis.They also converge at the south pole, which is the south extremity of theEarth's...
At the north and south poles
0 degrees latitude and longitudeHope this helps =)
This is the center, or locus, of a set of points, such as a curve or circle.
If the shape is two-dimensional then it is a circle, if the shape is three-dimensional then it's a sphere.