The theory of plate tectonics helps scientists explain
Ahow ocean currents move over Earth’s surface.
Bwhy hurricanes occur.
Chow earthquakes and volcanic eruptions occur.
Dwhy Earth’s mantle is more dense than its crust
Ahow ocean currents move over Earth’s surface.
Bwhy hurricanes occur.
Chow earthquakes and volcanic eruptions occur.
Dwhy Earth’s mantle is more dense than its crust