EXOGENIC PROCESSES (WEATHERING, EROSION, MASS WASTING)

exogenic processes are external processes that leads to progression on the earth's surface

• true

• false

• - has two types: chemical and physical

  • - breakdown of rocks

• - large rocks turn into fragments

• - disintegration of rocks

agents of physical weathering

• water

• temperature

• pressure release / unloading

• plants and animals

• oxidation

• - freeze thaw cycle

  • - occurs in regions where temperatures fluctuates above and below freezing point

block disintegration is the heating and cooling of the temperature that leads to the expansion and contraction of rocks

• true

• false

• - alternate heating and cooling

• - the rock's outer layer peels

• - peeling effect

breaking of rock due to repeated cycles of expansion

and contraction due to temperature changes

• - continuous weathering causes sheets of rocks to break away

• - exfoliation due to the pressure released

  • - ex. intrusive igneous rock

• - agents of both physical and chemical weathering

• - examples of biological action as an agent of weathering