the layer representing the mantle the layer representing the outer core the layer representing the inner core the layer representing the crust
I am hesitating between 4 options to answer the following question, which option should I choose?
Question: A student uses clay to construct a model of Earth. Which layer of the model should be the thinnest layer?
Possibilities:
- the layer representing the mantle
- the layer representing the outer core
- the layer representing the inner core
- the layer representing the crust

the layer representing the crust