The theory combined the ideas of continental drift and seafloor spreading. A. Plate Tectonic
B. Pangea
C. trench
D. Subduction​

7. according to the theory of isostasy, which statement must be true? a. the asthenosphere is denser than the lithosphere. b. the asthenosphere has the same density as the lithosphere. c. the lithosphere has the same density as the core. d. the lithosphere is denser than the asthenosphere.

Match the graph type to its description. 1. uses symbols to describe information pie 2. compares different quantities at the same point in time line 3. compares increases and decreases in a quantity over a period of time bar 4. shows the relationship of parts to each other and to the whole pictograph

The oldest seafloor in the atlantic ocean is located closest to the edge of the continents. explain how this age can be used to figure out when north america first began to separate from europe