Why Earth Isn’t a Perfect Sphere: The Oblate Spheroid Explained Simply

1. Earth looks round, but it’s actually slightly flattened at the poles and bulges at the equator.
2. This unique shape is called an oblate spheroid, not a perfect sphere like a basketball.
3. Earth’s spin causes the equator to bulge outward, making the poles slightly closer together.
4. Imagine squishing a soft ball from the top and bottom—Earth’s shape changes in a similar way.
5. Understanding Earth’s true shape helps scientists with navigation, satellites, and studying our planet’s movements.

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