a: Earth crust ~
b: a giant conveyor belt
What:
"Earth's crust is like a giant conveyor belt, with plates spreading apart at mid-ocean ridges and diving into the mantle for recycling at subduction zones, Key explained."
Useful?
Writer: Kerry Key
LCC:
Where:
Date: Feb 26 2014 6:15 PM
# 5113 Critique Analogy