The Earth's shape is best described as an oblate spheroid. It is similar to a mashed beach ball, but slightly flattened at the poles and bulging at the equator. This shape is a result of the Earth's rotation, which causes the equator to experience a centrifugal force that pushes material outward, creating the bulge. To confirm this information, you can perform a quick online search using keywords such as "shape of the Earth" or "oblate spheroid," and you will find various reliable sources, such as scientific articles or educational websites, that explain the Earth's shape in detail.
