One model of this material that features a “critical state line” is called its “Modified Cam” model. An equation developed by Karl von Terzaghi computes this material’s “bearing capacity.” (10[2])This material’s swelling potential increases with its plasticity (10[1])index, (10[1])which can be calculated from its Atterberg limits. Increases in pressure cause this prototypical three-phase material to contract during (10[1]-5[1])“consolidation.” (10[2]-5[2])Compaction (-5[1])of this (-5[1])material (10[1]-5[1])can cause a structure’s foundation (10[1]-5[1])to move (10[2])during “settlement.” (10[12]-5[12])Applied (10[6]-5[2])stresses (10[6])can (10[1])cause (-5[1])excess (-5[1])pore (-5[1])water (10[2]-5[1])pressure (-5[2])to build (10[1]-5[3])in this material, (10[2]-5[3])causing (10[1])its (10[1]-5[1])“liquefaction” (10[4])during (10[3])earthquakes. (10[8]-5[7])Based (10[1])on its particle (10[1]-5[2])size distribution, (-5[3])this material (10[1])can (10[1])be classified (-5[1])into subtypes (10[4])such as (10[1])sand (10[1])and clay. (10[3]-5[1])For (-5[1])10 points, (10[3])what (10[1])organic (10[1])material (10[1])do plant roots (10[2])typically anchor (10[1])themselves in? (10[4])■END■ (10[37])