What causes the lithospheric plates to move, leading to the drifting of the continents? Convection currents within the lithospheric plates cause the plates to float on top of the rigid, brittle asthenosphere.
The continents move due to the plastic, flowing composition of the lithospheric plates upon which the continents sit.
The plastic, flowing asthenosphere slides over the top of the brittle, rigid lithospheric plates causing the continents to drit
O Convection currents cause the asthenosphere to be plastic and flowing which moves the plates that sit on top.