What is the primary cause for continental drift, earthquakes, and volcanic eruptions? Question 2 options:

a. heat from the Earth's core

b. rotation on the Earth's axis

c. convection currents in the mantle

d. erosion of the Earth's crust

Heat from the earth's core

Explanation:

The force that causes most of the plate movement is thermal convection, where heat from the Earth's interior causes currents of hot rising magma and cooler sinking magma to flow, moving the plates of the crust along with them. In ridge push and slab pull, gravity is acting on the plate to cause the movement.

answers.com says temperate reagions

a and b because with the other three, they simplify to something else.