Question

What is The force below Earth that sales landforms?

Answer 1

From about the sixth century. C. began to speculate about the sphericity of the Earth, finding that Thales of Miletus was the first who drew a geographical area. Until then, it was considered flat, but navigation especially in towns as the Phoenicians and Greeks, accompanied by a lot of philosophers and mathematicians made the first mention is made about the earth's surface was actually a sphere.
This belief was reflected on the reality when Juan Sebastián Elcano and Fernando Magallanes, managed to turn Earth browsing.
However, the Earth is not a perfect sphere, but for optimal representation of it, a sphere (ellipsoid in particular) is used, because it is a regular surface, can be described by mathematical formulas (important when designing the surface on a map).
The reality is that the Earth does not respond to any mathematical formula, it is an uneven surface. The planet Earth is actually more like a spheroid.