Answer: Sense i did the quiz(why there's a screenshot) and the answers are :for Part a: its A and D:
:for Part b its B and C:
your welcome .
Explanation:
I'll do it! when should it be done by? Also, what grade are you in?
Go plant some trees and flowers.
The theory of plate tectonics states that the Earth's surface, the upper mantle and crust, was once made up of enormous rock plates that broke into smaller pieces approximately 300 million years ago. These smaller, broken plates form a more fluid rock surface in the mantle. Over time, the plates move and morph into natural land boundaries. This explains natural land phenomena, such as earthquakes and tsunamis.So A
