Answer:
Richter or Mercalli Scale.
Explanation:
Answer:
The plate motion that occurred near the Great Plains and Rocky Mountains uplifted igneous rock that formed underground. This rock eventually eroded and its sediment formed sedimentary rock in the Great Plains. ... Uplift and subduction can expose rock formations to different energy sources, which can transform them.
D. crust and upper mantle
because it is the two uppermost layers that moves the plates to create earthquakes, landslides, etc.
A is wrong because there is another layer in between the two called the upper mantle.
B and C is wrong because they do not contain the crust, the outermost layer of the earth.
Part A is B and Part B is D.