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Q1. What is the process by which wind and/or water detach and transport soil
particles?
A. Sediment
B. Sedimentation
C. Erosion
D. Compaction
Rationale: Erosion is the detachment and transport of soil particles by wind or
water. Sediment is the transported material, while sedimentation is deposition.
Q2. What term describes eroded material suspended in wind or water?
A. Sediment
B. Erosion
C. Sedimentation
D. Aggregate
Rationale: Sediment is the actual soil material carried in wind or water.
,Q3. What is the deposition of eroded material called?
A. Sediment
B. Erosion
C. Sedimentation
D. Weathering
Rationale: Sedimentation is the settling/deposition of eroded material after
transport.
Q4. Which of the following are types of erosion? (Select all that apply)
A. Splash
B. Sheet
C. Rill
D. Gully
E. Channel
Rationale: All listed are recognized types of erosion that vary in scale and severity.
Q5. Which erosion occurs when raindrop impact energy is strong enough to
dislodge soil particles?
A. Splash erosion
B. Sheet erosion
C. Rill erosion
D. Channel erosion
Rationale: Splash erosion is caused by raindrop impact that breaks apart soil
aggregates.
Q6. Which erosion type is caused by rain splash detaching soil particles that are
then removed by shallow sheets of water?
A. Gully erosion
,B. Sheet erosion
C. Splash erosion
D. Channel erosion
Rationale: Sheet erosion = thin layers of soil washed away by shallow surface
flow.
Q7. Which erosion develops when small concentrated water flows cut tiny
channels into soil?
A. Rill erosion
B. Gully erosion
C. Sheet erosion
D. Splash erosion
Rationale: Rill erosion occurs when small channels begin forming from runoff.
Q8. Which erosion results when runoff enlarges rills into deeper and wider
channels?
A. Sheet erosion
B. Gully erosion
C. Splash erosion
D. Channel erosion
Rationale: Gullies form when rills deepen and expand into major channels.
Q9. Which erosion occurs when streams or channels become unstable due to
increased flows or sediment load changes?
A. Channel erosion
B. Sheet erosion
C. Rill erosion
D. Splash erosion
, Rationale: Channel erosion happens within stream or drainage channels.
Q10. Which type of erosion is generally attributed to natural climate influences
on Earth’s surface?
A. Accelerated erosion
B. Natural erosion
C. Splash erosion
D. Channel erosion
Rationale: Natural erosion is due to weather and climate without human
interference.
Q11. Which type of erosion combines natural processes with human activities
such as deforestation, farming, and construction?
A. Sheet erosion
B. Accelerated erosion
C. Natural erosion
D. Gully erosion
Rationale: Accelerated erosion = natural erosion exacerbated by human impact
What problems can accelerated erosion cause? - ANSWER Unrestricted
development
removal of surface cover
increased imperviousness
poor stewardship
Problems associated with construction related erosion - ANSWER problems
for down slope property owners