Answer:
None
Step-by-step explanation:
The Earth is a planet itself so it has no planets. If you want to know how many moons Earth has it only has one. If you want to know how many planets surround Earth and are in it's solar system then 8. Lastly, those in order would be, Murcury, Venus, Earth, Mars, Jupiter, Saturn, Uranis, Neptune. If you want Earth's layers, 3, Crust, mantle, and core.