PT Weathering, Erosion, Age Of Rocks: Question Preview (ID: 11133)

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When outer layers of rocks peel away from changes in outside temperature
a) oxidation
b) frost wedging
c) exfoliation
d) root pry

When a rock breaks into small pieces because water gets into cracks and expands and freezes
a) frost wedging
b) exfoliation
c) abrasion
d) pressure reducation

When water dissolves minerals in rocks making them weaker
a) exfoliation
b) hydrolysis
c) oxidation
d) pressure reduction

Oxygen mixes with other elements to weaken rocks ( iron + oxygen)
a) hydrolysis
b) abrasion
c) humic acid
d) oxidation

When wind or water moves small particles that hit and break down rough rocks
a) pressure reduction
b) abrasion
c) hydrolysis
d) frost wedging

When acids chemically break down rocks, caused by living organisms on the rock
a) plant acid
b) hydrolysis
c) oxidation
d) physical weathering

Plant acid (humus), water, and oxygen are all agents of ___________
a) physical weathering
b) erosion
c) chemical weathering
d) dune migration

Water will _____________ when it freezes, causes rocks to break apart
a) shrink
b) expand
c) collapse
d) evaporate

Chemical weathering occurs ___________ when there is more surface area
a) faster
b) slower
c) moderatly
d) does not happen

The darkest and richest soils are found in the ___________
a) A horizon
b) B horizon
c) C horizon
d) Bedrock

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