WITH 100% VERIFIED ANSWERS
\.Erosion - ANSWERS-process in which, by the actions of wind and/or
water, soil particles detached and transported
\.Sediment - ANSWERS-eroded material suspended in wind or water
\.Sedimentation - ANSWERS-deposition of eroded material
\.Types of Erosion - ANSWERS-splash
sheet
rill
gully
channel
\.Splash erosion - ANSWERS-raindrop impact energy is enough to
dislodge surface sediments
,\.sheet erosion - ANSWERS-caused by rain splash detaching soil
particles lifting them up and removing them by shallow "sheets" of
water flowing down the sloped soil surface
\.Rill Erosion - ANSWERS-as flow concentrates, small channels begin to
form in the soil surface
\.Gully Erosion - ANSWERS-Formed when runoff cuts rills deeper and
wider or when flows from several rills come together and form a large
channels
\.Channel Erosion - ANSWERS-may become unstable due to increased
flows or changes in upstream sediment load
\.Natural erosion - ANSWERS-generally considered due to the influences
of climate on the surface of the earth
\.Accelerated erosion - ANSWERS-natural erosion plus human activities
\.What problems can accelerated erosion cause? - ANSWERS-
Unrestricted development
removal of surface cover
increased imperviousness
,poor stewardship
\.Problems associated with construction related erosion - ANSWERS-
problems for down slope property owners
nuisance problems on streets
clog streams and storm drains
increased turbidity downstream
cover sensitive habitat with sediment
\.Identify instream damages of sediment - ANSWERS-destruction of
spawning areas, food sources, habitat
direct toxicity to wildlife
lake degradation
filling of navigation channels
impacts to commercial fisheries
reduction of water storage capacities
\.Suspended material - ANSWERS-sediment can affect light penetration,
channel stability, fisheries and habitat
\.Name Off stream damages - ANSWERS-Increased flood hazards
increased water treatment costs
, decreased capacity in conveyance facilities
higher infrastructure maintenance costs
\.What has increased the amount of impervious surface in our
watersheds? - ANSWERS-Urbanization and development
\.priority pollutants include - ANSWERS-nutrients
pathogens
heavy metals
toxics
sediment
salts
detergents
hydro carbons
\.Clean Water Act (CWA) - ANSWERS-Federal Water Pollution Control
Act enacted to restore and maintain the chemical, physical and
biological integrity of the waters of the US
administered by USEPA
\.Section 401 - ANSWERS-water quality certification