Answer:
C
Explanation:
A hot spot develops above the plume. Magma generated by the hot spot rises through the rigid plates of the lithosphere and produces active volcanoes at the Earth's surface. And as oceanic volcanoes move away from the hot spot, they cool and subside. As a result they produce older islands, atolls, and seamounts.
Answer:
BECAUSE WE DONT KNOW!!!!!!!!!!!!!!!!
Explanation:
Oceanic Crust
Continental Crust
Oceanic crust is denser than continental, this is why continents are at higher elevation than oceans.