They did not, it is just that the inner core is solid and the outer core is liquid, so they just made it 2 diffrent layers. Hope this helps!
Chat with our AI personalities
Core is divided into physical and chemical layers
Because they want to check what is in the core of the earth.
Scientist is divided into syllables as follows: sci/en/tist
The sun is divided into layers and zones. In the center of the sun is the core that extends a quarter of the way to its surface.
A scientist and explorer can DISCOVER but a scientist can DISCOVER and INVENT