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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
exfoliation
B
frost wedging
C
root pry
D
oxidation
2) 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
3) When water dissolves minerals in rocks making them weaker
A
exfoliation
B
oxidation
C
hydrolysis
D
pressure reduction
4) Oxygen mixes with other elements to weaken rocks ( iron + oxygen)
A
oxidation
B
abrasion
C
hydrolysis
D
humic acid
5) When wind or water moves small particles that hit and break down rough rocks
A
abrasion
B
hydrolysis
C
pressure reduction
D
frost wedging
6) When acids chemically break down rocks, caused by living organisms on the rock
A
oxidation
B
hydrolysis
C
plant acid
D
physical weathering
7) Plant acid (humus), water, and oxygen are all agents of ___________
A
dune migration
B
physical weathering
C
chemical weathering
D
erosion
8) Water will _____________ when it freezes, causes rocks to break apart
A
expand
B
shrink
C
collapse
D
evaporate
9) Chemical weathering occurs ___________ when there is more surface area
A
slower
B
moderatly
C
does not happen
D
faster
10) The darkest and richest soils are found in the ___________
A
A horizon
B
Bedrock
C
C horizon
D
B horizon
*select an answer for all questions
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