Answer:
Explanation:
Accretion occurs as mantle is added to the growing edges of a plate, associated with seafloor spreading. This hot added material cools down by conduction and convection of heat. ... Mantle convection causes tectonic plates to move around the Earth's surface.
The answer is, I believe, the Grand Canyon.
B) Situational Characteristics
0,1,1,2,3,3,4,4
this would be proper set notation