true or false 12. development volcanic arc are mountains formed in part of igneous activity associated with subduction of oceanic lithosphere beneath a continent?

true or false
13. centennial crust is the thick part of the earth's crust, not located under the ocean?

true or false
14. trench crust is the thin part of the earth's crust located under the ocean?

true or false
15. the rigid sections of the lithosphere that move as a unit is called plateau?


pls can u answer 4 questions..​