How are the structures of the Moon and the structure of Earth similar?

Explanation

To answer the question of how the structures of the Moon and the Earth are similar, we can break down the information into clear steps:

### Step 1: Identify the Layers of the Earth
The Earth is composed of three main layers:
- **Crust**: The outermost layer, which is solid and relatively thin.
- **Mantle**: The layer beneath the crust, which is semi-solid and can flow slowly over time.
- **Core**: The innermost layer, which consists of a solid inner core and a liquid outer core.

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