Exogenous processes gain their energy from the Sun. They transform the Earth by wearing down its surface, transporting loose material and by piling up this material in different locations.
The four most important forces of erosion are flowing water, ice, waves, and the wind.
Flowing water erodes the river's curves and carries loose material with itself, creating meanders, sandbanks, and deltas.
Ice and the glacial till it carries can erode rocky surfaces, forming glacialized rocks and U-shaped valleys.
Waves, ice and wind transform the seashore, forming steep banks, shallow beaches and other formations such as rauks.
Wind can carry sand and other materials, forming loess, dunes and rock pedestals.