Final answer:
Earthquakes are a significant contributor to shaping the landscape of the Earth because they are caused by the movement of tectonic plates, resulting in changes in the Earth's crust.
Step-by-step explanation:
Earthquakes are a significant contributor to shaping the landscape of the Earth. This is true because earthquakes are caused by the movement of tectonic plates, which in turn cause changes in the Earth's crust. When the plates collide or slide past each other, it results in the release of energy in the form of seismic waves, causing the ground to shake. This shaking can lead to the formation of mountains, valleys, and other geological features.