Mountain building is also known as orogeny and it is not cause by human interactions with the earth system. Mountains are built by the forces of moving plates and agents of denudation.
Mountains are extensive and high peaks which are made up of rocks.
Human interactions on earth do not form rocks especially in the magnitude of a mountain.
Pollution, deforestation are all due to the activities of man on the earth.
Mountains are built when the land is pushed up or when materials accumulate to a very extensive form on the earth surface.