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PT Weathering, Erosion, Age Of Rocks
Test Description: Review part 1
Instructions: Answer all questions to get your test result.
1) When outer layers of rocks peel away from changes in outside temperature
A
oxidation
B
exfoliation
C
root pry
D
frost wedging
2) When a rock breaks into small pieces because water gets into cracks and expands and freezes
A
pressure reducation
B
frost wedging
C
abrasion
D
exfoliation
3) When water dissolves minerals in rocks making them weaker
A
pressure reduction
B
oxidation
C
hydrolysis
D
exfoliation
4) Oxygen mixes with other elements to weaken rocks ( iron + oxygen)
A
hydrolysis
B
humic acid
C
abrasion
D
oxidation
5) When wind or water moves small particles that hit and break down rough rocks
A
frost wedging
B
pressure reduction
C
hydrolysis
D
abrasion
6) When acids chemically break down rocks, caused by living organisms on the rock
A
physical weathering
B
oxidation
C
hydrolysis
D
plant acid
7) Plant acid (humus), water, and oxygen are all agents of ___________
A
physical weathering
B
erosion
C
chemical weathering
D
dune migration
8) Water will _____________ when it freezes, causes rocks to break apart
A
evaporate
B
collapse
C
shrink
D
expand
9) Chemical weathering occurs ___________ when there is more surface area
A
moderatly
B
does not happen
C
slower
D
faster
10) The darkest and richest soils are found in the ___________
A
A horizon
B
C horizon
C
B horizon
D
Bedrock
*select an answer for all questions
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