an earthquake
The heartbeat!
Plants hold soil together, but also by their very presence they act as a windbreak which reduces the force of the wind, which would protect some exposed rocks.
Listen to: Tangerine Dream - Thru Metamorphic Rocks
The cardiovascular system and lymphatic system. Whenever the heart beats, a little fluid called lymph squeezes out of capillaries. This fluid is collected by lymph capillaries to be filtered in the lymph nodes.
compression
Stresses the squeeze rocks or anything else are compressive.
The force is created by the self weight of the overlying material.
The squeezing together of rocks by stress is called compression. In scientific terms Compression is when a force called stress pushes rock/squeezes rock together until it folds or breaks.
compression
Compression
Sand squeezed together, and aged, can make a pearl.
Mountains
an earthquake
Mountains
Mountains
Mountains