GLOSSARY
Tectonic- plate tectonics is the study of the large tectonic plates which float on the lithosphere,making up our crust.
Earthquake- an earthquake is shaking or sometimes displacement of ground as a result of a sudden release of energy in the earth's crust that created seismic wave.
Surface- The outer face, outside, or exterior boundary of a thing; outermost or uppermost layer or area.
Avalanches- falling rocks
Depth- the distance from the top or surface of something to its bottom
Erosion-The word erosion refers to the condition of being eroded or the process of eroding. It may also be said to refer the natural processes by which material is worn away from the earth's surface. These processes include dissolution, abrasion and corrosion.