9.Convection currents inside the Earth’s might drive plate motion.

Convection currents in the earth's magma might drive plate motion .

Explanation:

Magma is the molten rock below the crust, in the mantle. Tremendous heat and pressure within the earth cause the hot magma to flow in convection currents. These currents cause the movement of the plates inside the planet ..

prism b but im not for sure

for 8 am not sure maybe yes?

for 9 if it is asking if the male is more or less it would be less

hope i even just a little : )