Answer:
the center of the earth is called the core
We are more intellegent than adults
The Rocky Mountains are described as younger because the Rocky's are really two mountain chains. The older mountain chain started billions of years ago, and the younger mountain chain pushed the older mountain chain up more, only 60 millions years ago.
It is formed through pyroclastic rock fragments as it builds up it makes a cinder cone. I hope that helps...
Ir is the third opinion, 100km area
