2. convection currents cause continental drift

Question 1

1.

Answer 1

convection currents occurs –> mantle heated by core –> mantle material expand –> rise & spread out beneath plates

Question 2

2.

Answer 2

plates dragged along –> move away from one another

Question 3

3.

Answer 3

hot mantle material cools slight & sinks –> pulling plates along

Question 4

4.

Answer 4

repeats when sinking mantle material nears core & heats up

Question 5

5.

Answer 5

slab pull force occurs –> dense sinking oceanic plate at subduction zones pulls rest of plate behind it

slab pull force –> main driving mechanism for plate movement –> drives downward-moving mechanism –> mantle material away from where plates subduct drives rising