Mass Movement Picture

Mass Movement

Word-Avalanche. Definition-An avalanche is a massive slide of snow, ice, rock or debris down a mountainside. Provoked by an earth tremor, extreme rain or man-made disturbances (such as a loud noise)

Petroleum is made out of remains of dead animals and plants mixed in with water. It has been under sand and silt for over millions of years old. And heat and pressure would turn it into slime oily substance.