formation

The formation of glacier is an accumulation of snow that lasts for more than a year. As more and more snow piles up, the ice at the bottom becomes compressed. Living organisms have an important function in the formation of soil. The numerous animals and plants that live in the soil use minerals found there, and in turn create organic matter that aids in the translocation (movement) and aeration of the soil, and helps protect the soil from erosion.

Tectonic plates have also collided with one another, at what are called convergent boundaries. The edge of one plate slides beneath the other, pushing it up, resulting in the formation of mountains.