PHYSICAL WEATHERING : rocks are broken down by physical forces, , , water freezing and thawing over and over again, rocks are broken down no change in chemicals, , , causes sidewalk cracks, CHEMICAL WEATHERING: Chemical reaction cause rock to weather, , rock changes composition, , , rocks are chemically altered and broken down, , Acid rain,

Classement

Style visuel

Options

Changer de modèle

Restauration auto-sauvegardé :  ?