EES Exam 2 Study Guide Questions and answers, 100% Accurate. Rated A+

EES Exam 2 Study Guide Questions and answers, 100% Accurate. Rated A+ Physical Weathering - -Over time, movements of the Earth and environment can break apart rock formations. This weathering does not change chemical composition. Chemical Weathering - -the erosion or disintegration of rocks, building materials, etc., caused by chemical reactions (chiefly with water and substances dissolved in it) rather than by mechanical processes. Biological Weathering - -the weakening and subsequent disintegration of rock by plants, animals and microbes. Jointing - -A process of a fracturing dividing rock into two sections that have not moved away from each other. It's caused by numerous kinds of stress Exfoliation - -A form of jointing when rocks formed at depth are exposed at the ground surface; the previous compressional forces would decrease and thus allow the rock to expand by fracturing parallel to the surface. Frost Wedging - -breaking of rock by water after many cycles of freezing and thawing inside cracks of the rock Salt Wedging - -rock disintegration caused by the crystallization of salts from evaporating water Root Wedging - -In this type of physical weathering, the roots of a plant (typically a tree) wedge into a crack in a rock and, as the plant grows and splits the rock. Dissolution - -A form of chemical weathering during which minerals dissolve into water Hydrolysis - -A form of chemical weathering during which water chemically reacts with minerals and breaks them down to form other minerals. Ex: feldspar to clay Oxidation - -A form of chemical weathering that transforms a rock's iron-bearing minerals into a rusty-brown mixture of various iron-oxide and iron-hydroxide minerals. Hydration - -(Chemical Weathering) The absoprtion of water into the crystal structure of minerals. It causes some minerals to expand and weaken rock. Karst - -An area of irregular limestone in which erosion has produced fissures, sinkholes, underground streams, and caverns