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Weathering, Soil And Mass Movements
Test Description: Weathering, Soil and Mass movements
Instructions: Answer all questions to get your test result.
1) The process that occurs when physical forces break rock into smaller pieces without changing the rock\\\'s chemical composition is called ____.
A
erosion
B
chemical
C
differential
D
mechanical
2) Which of the following is NOT associated with mechanical weathering?
A
abrasion
B
biological activity
C
frost wedging
D
reactions with oxygen
3) What kind of material is found in the A horizon of a soil profile?
A
parent material (bedrock)
B
clay
C
mineral and organic matter
D
partially weathered parent material
4) What is the force behind mass movements?
A
flowing water
B
moving ice
C
sun's energy
D
gravity
5) Which of the following would transmit the least amount of water due to tiny pore spaces between the sediment?
A
silt
B
clay
C
gravel
D
sand
6) The rate of soil erosion depends on ____.
A
slope steepness
B
all of these
C
type of vegetation
D
climate
7) In which of the following areas will soil formation be greatest?
A
a steep slope in a warm, wet climate
B
a flat area in a cold, wet climate
C
a north-facing area on a steep slope
D
a flat area in a warm, wet climate
8) Which of the following human activities has caused an increase in soil erosion?
A
plowing land for farming
B
all of these
C
clearing land for construction
D
clear-cut logging
9) Why can the removal of vegetation trigger mass movements?
A
The shaking triggers mass movements.
B
The plant roots lubricate the loose sediment.
C
The plant roots bind and anchor the soil.
D
The soil loses nutrients and begins to crumble.
10) During what season would you expect mass movements to be a greater threat?
A
a dry summer
B
a wet spring with lots of growing vegetation
C
a wet spring before vegetation is growing
D
a dry autumn after the leaves have turned
*select an answer for all questions
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