Answers
Erosion - correct answers ✔✔The process by which the land surface is worn away by the action of wind,
water, and gravity
Sedimentation - correct answers ✔✔The settling out of particles transported by wind and water
Soil erosion can be classified as either ___ erosion or ___ erosion, and the sources can be either ___ or
___ - correct answers ✔✔wind, water, natural, manmade
Water erosion can be classified as either ___ erosion or ___ and ___ erosion - correct answers
✔✔overland, stream, channel
What are the four processes of overland erosion? - correct answers ✔✔Splash or rain drop, sheet, rill,
and gully
What are the four principle factors influencing soil erosion? - correct answers ✔✔Soil characteristics,
vegetative cover, topography, and climate
List three physical effects of erosion and sedimentation - correct answers ✔✔Increased flooding reduced
hydraulic capacity in rivers, streams, channels, reservoirs; increased maintenance of stormwater
systems; increased water treatment costs; decreased recreational value
List three biological effects of erosion and sedimentation - correct answers ✔✔Reduced light for aquatic
plants; clogs fish gills; impairs spawning; disrupts food chain; blankets bottom, suppresses aquatic life;
disrupts ecosystem
Plan the development to fit the terrain using the particular - correct answers ✔✔Topography, soils,
drainage patterns, natural vegetation of the site, and minimize the extent of the area exposed at one
time and the duration of exposure
, Apply ___ practices to protect the disturbed area from off-site runoff and to protect off-site areas from
sediment damage - correct answers ✔✔perimeter control
Apply ___ practices to prevent excessive on-site damage - correct answers ✔✔erosion control
Keep runoff velocities ___ and ___ runoff on the site - correct answers ✔✔low; retain
It is very important to stabilize disturbed areas ___ after final grading to prevent raindrop impacts from
causing erosion - correct answers ✔✔immediately
Implement a thorough ___ and ___ (inspection) program as required in the Construction Generic Permit
(CGP) - correct answers ✔✔maintenance; follow up
Soil particles smaller than 0.002 mm are classified as ___ and along with ___ are the two soil types that
cause the most erosion/turbidity problems in Florida and the world - correct answers ✔✔clay; muck
Soils in the Type A hydrologic group have ___ infiltration rates and ___ runoff potential even when
thoroughly wetted - correct answers ✔✔high; low
Soils in the Type D hydrologic group have ___ infiltration rates and ___ runoff potential even when
thoroughly wetted - correct answers ✔✔low; high
The ___ is the only factor in the Universal Soil Loss Equation which is beyond the developer's control -
correct answers ✔✔rainfall erosion index
Slope ___, ___, and ___ are the factors most easily manipulated by the developer - correct answers
✔✔length; gradient; cover factor
The RUSLE is used on our construction sites to predict ___ - correct answers ✔✔soil loss
Stabilize disturbed lands immediately to save ___ - correct answers ✔✔money