Sphericity of Earth

The sphericity of Earth means that the planet is shaped roughly like a sphere, similar to a ball. While not a perfect sphere—due to factors like rotation causing slight bulges at the equator—Earth's overall shape is close to a sphere. This shape results from gravity pulling matter toward the center, creating a round form. Sphericity explains why objects appear curved over long distances and why navigation and satellite systems rely on Earth's spherical geometry for accurate positioning. Essentially, Earth’s shape is that of a slightly flattened sphere, which is common among planets formed through cosmic processes.