Rate Physical (mechanical) weathering breaks up rock by physical stresses: a. temperature b. addition/removal water c. formation of ice d. unloading e. plants and animals [Exploits weaknesses in the rock] Chemical weathering alters the composition of the rock a. solution b. hydrolysis c. oxidation d. carbonation (dissolve CO2 in water, reacts with limestone) Global Patterns of Rate and Type Mass Movements Movement of material down-slope under the influence of gravity;
(ice d.; unloading; e. plants and animals)
ice d.
unloading
e. plants and animals