Answer is for the earths core to cool enough for convection to stop, then the plates would have no convection current to move them.
Explanation: If the Earth's core were to cool down, the convection currents in the mantle would stop moving. Since the convection currents drive the plates, they would stop moving.
Step away and inform your instuctor
Difference of heating.
HOped that helped :))
Answer:
D, all of these are included in the biosphere
