Respuesta :
Earthquakes, volcanic activity, mountain-building, and oceanic trench formation occur along these plate boundaries. ... Tectonic plates are able to move because the Earth's lithosphere has greater mechanical strength than the underlying asthenosphere. Lateral density variations in the mantle result in convection.
Earthquakes, volcanic activity, mountain-building, and oceanic trench formation occur along these plate boundaries. ... Tectonic plates are able to move because the Earth's lithosphere has greater mechanical strength than the underlying asthenosphere. Lateral density variations in the mantle result in convection.