The earth is an oblate spheroid, which is like a sphere but squashed along one axis. This makes the circumference around that axis larger than the circumference around the poles. In this case that larger circumference is the earth's equator. This circumference difference is hard to see in pictures of the earth because the amount it varies is very small compared to the size of earth. You need specialty equipment and mathematics to measure it accurately.
spam fails_task lang_mismatch pii not_appropriate hate_speech sexual_content quality toxicity humor helpfulness creativity violence