The theory of plate tectonics states that the Earth’s crust is broken into many pieces called . A.
supercontinents
B.
boundaries
C.
plates
D.
rings

Please select the best answer from the choices provided
A
B
C
D

The caste system in india was used for what purpose? a) to ensure that all people had an adequate income b) to prevent the rich from taking too much power c) to provide social control and conformity according to one’s birth d) to draft a military capable of defending india from mongol invasion