The two principal ways to describe Earth’s structure are based on its chemical composition and thickness (Option a).
What are Earth's layers?
The Earth's layers are chemically different layers that form the structure of the Earth from its core to Earth's surface.
These layers include:
- crust
- mantle
- outer core
- inner core
In conclusion, the two principal ways to describe Earth’s structure are based on its chemical composition and thickness (Option a).
Learn more about Earth layers here:
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