1. Using the picture above answer the following question. According to the diagram, the deep trench along the west coast of South America is caused by
movement of the oceanic crust that is *
O younger and sinking beneath the continental crust, because it is more dense.
older and sinking beneath the continental crust, because it is more dense.
younger and uplifting over the continental crust, because it is less dense.
older and uplifting over the continental crust, because it is less dense.
2. The lavers of the Earth listed from hiahact to