Geometry, geography and geology are different things. There are no outstanding subtle questions about the Earth's geometry as far as I'm aware. It's not a perf

Geometry, geography and geology are different things. There are no outstanding subtle questions about the Earth's geometry as far as I'm aware. It's not a perfect sphere but we have literally mapped the surface of the Earth with detailed 3D point clouds - we can model the geometry down to near arbitrary levels of detail, and we do. Look at Google Earth! Questions about how the Earth got into its current state and why it looks the way it does are not geometric questions.