Question

Seafloor spreading and continental drift are believed to be caused by
A
tides
B
convection currents in the mantle
C
changes in Earth's magnetic field
D
shrinkage of the crust as the Earth cools

Answer 1

Seafloor spreading and continental drift are believed to be caused by **B) convection currents in the mantle**. These convection currents facilitate the movement of tectonic plates, leading to the processes of seafloor spreading and continental drift.