SSC 200: Final Exam Questions And
Answers
Vegetative bbarriers bplanted bon bthe bcontour bhave bbeen bfound bto bcreate blow-cost
b"natural" bterraces. b- bcorrect banswers✔✔True
If byou bwant bto bmaximize bthe bquantity bof bvegetative bcover bon bsoil bwhich bof bthe
bfollowing btillage bpractices bwould byou buse? b- bcorrect banswers✔✔No- bTillage
The btotal bglobal bsoil blost bthrough berosion bis bgenerally bgreater bfrom bgully berosion
bthat bfrom bsheet berosion. b- bcorrect banswers✔✔False
The bkey bto bpreventing bsoil berosion bby bwater bon bboth bfarmland band blandscaping
bjob bsites bis b_____. b- bcorrect banswers✔✔To bkeep bthe bsoil bsurface bcovered bwith
bvegetation.
Compared bto bconventional btillage bsystems, bmost bconservation btillage bsystems brely
bmore bheavily bon bherbicides bto bcontrol bthe bweeds. b- bcorrect banswers✔✔True
in bexplaining berosion bprocesses bto ba bfriend, bwhich bof bthe bfollowing bwould byou
bsay babout baccelerated berosion? b- bcorrect banswers✔✔It bis bgreatly benhanced bby
bthe bsplash beffect bof braindrops bimpacting bbare bsoil.
The buniversal bsoil-loss bequation b(USLE) bsuggests bthat bsoil berosion bloss bis ba
bproduct bof ball bbut bone bof bthe bfollowing bfactors: b- bcorrect banswers✔✔Soil
bdrainage.
Ridge-till bsystems bshow bpromise bin bthe bmanagement bof bsomewhat bpoorly bdrained
bsoils bof bthe bMidwest. b- bcorrect banswers✔✔True
Conservation btillage bhas bgenerally bpositive beffects bon bsoil bphysical bproperties. b-
bcorrect banswers✔✔True
In bthe bUnited bStates, blosses bof bsoil bdue bto bwind band bwater berosion bdecreased bby
bnearly b40% bbetween b1982 band b2003. b- bcorrect banswers✔✔True
, The bT bvalues bare bthe bmaximum blosses bof bsoil bby berosion bthat bcan bbe btolerated
bwithout ba breduction bin bthe bsoil's blong bterm bproductivity. b- bcorrect banswers✔✔True
The bsoil berodibility bfactor bin bthe bUniversal bsoil-loss bequation b(USLE) brelates
bprimarily bto bthe bsoil's binfiltration bcapacity band bstructural bstability. b- bcorrect
banswers✔✔True
Which bof bthe bfollowing bstatements bis btrue? b- bcorrect banswers✔✔Rill berosion
bchannels bcan bbe bremoved bby bordinary bcultivation.
Wind berosion bis bgenerally bnot baffected bby b____. b- bcorrect banswers✔✔soil bpH
Hydraulic bconductivity bis bcommonly bhigher bin bsoils bon bwhich bconventional btillage
bsystems bhave bbeen bused bthan bwhere bno-tillage bsystems bhave bbeen bfollowed. b-
bcorrect banswers✔✔False
A bsoil bhas bbeen bmanaged busing ba bno-till bsystem bfor b10 byears bfollowing bmany
byears bof bconventional btillage boperations. bWhich bof bthe bfollowing bchanges bin
bsurface bsoil bproperties bwould byou bexpect bdue bto bthe bno-till bmanagement bsystem?
b- bcorrect banswers✔✔Organic bmatter bcontent bwould bincrease.
The bP bfactor bin bthe bUniversal bsoil-loss bequation bis bconcerned bwith ball bbut bone bof
bthe bfollowing: b- bcorrect banswers✔✔soil berodibility.
After bdrying bto beliminate bthe bwater bin bplant blitter, bwhich btwo belements baccount bfor
babout b80% bof bthe bdry bweight? b- bcorrect banswers✔✔C band bO
Which bof bthe bfollowing bpools bcontain bthe blargest bamount bof bthe bworld's bcarbon? b-
bcorrect banswers✔✔Soil
Oxidation bor breduction bof binorganic bsoil bconstituents bsuch bas biron band bsulfur bis
bcarried bout bby bmembers bof bwhich bgroup(s) bof bmicroorganisms? b- bcorrect
banswers✔✔Bacteria
Plant broots bare ban bimportant bsource bof bcarbon bfor bmany bsoil borganisms bwhich
bare bbeneficial bto bplants. b- bcorrect banswers✔✔True
Most bsoil borganisms bare bheterotrophs. b- bcorrect banswers✔✔True
Which bof bthe bfollowing bis bnot ba bcharacteristic bof bsoil bcolloids? b- bcorrect
banswers✔✔Low bwater bholding bcapacity
Phosphate bavailability bis bconstrained bin balkaline bsoils bby bthe bpresence bof biron band
baluminum boxides. b- bcorrect banswers✔✔False
Answers
Vegetative bbarriers bplanted bon bthe bcontour bhave bbeen bfound bto bcreate blow-cost
b"natural" bterraces. b- bcorrect banswers✔✔True
If byou bwant bto bmaximize bthe bquantity bof bvegetative bcover bon bsoil bwhich bof bthe
bfollowing btillage bpractices bwould byou buse? b- bcorrect banswers✔✔No- bTillage
The btotal bglobal bsoil blost bthrough berosion bis bgenerally bgreater bfrom bgully berosion
bthat bfrom bsheet berosion. b- bcorrect banswers✔✔False
The bkey bto bpreventing bsoil berosion bby bwater bon bboth bfarmland band blandscaping
bjob bsites bis b_____. b- bcorrect banswers✔✔To bkeep bthe bsoil bsurface bcovered bwith
bvegetation.
Compared bto bconventional btillage bsystems, bmost bconservation btillage bsystems brely
bmore bheavily bon bherbicides bto bcontrol bthe bweeds. b- bcorrect banswers✔✔True
in bexplaining berosion bprocesses bto ba bfriend, bwhich bof bthe bfollowing bwould byou
bsay babout baccelerated berosion? b- bcorrect banswers✔✔It bis bgreatly benhanced bby
bthe bsplash beffect bof braindrops bimpacting bbare bsoil.
The buniversal bsoil-loss bequation b(USLE) bsuggests bthat bsoil berosion bloss bis ba
bproduct bof ball bbut bone bof bthe bfollowing bfactors: b- bcorrect banswers✔✔Soil
bdrainage.
Ridge-till bsystems bshow bpromise bin bthe bmanagement bof bsomewhat bpoorly bdrained
bsoils bof bthe bMidwest. b- bcorrect banswers✔✔True
Conservation btillage bhas bgenerally bpositive beffects bon bsoil bphysical bproperties. b-
bcorrect banswers✔✔True
In bthe bUnited bStates, blosses bof bsoil bdue bto bwind band bwater berosion bdecreased bby
bnearly b40% bbetween b1982 band b2003. b- bcorrect banswers✔✔True
, The bT bvalues bare bthe bmaximum blosses bof bsoil bby berosion bthat bcan bbe btolerated
bwithout ba breduction bin bthe bsoil's blong bterm bproductivity. b- bcorrect banswers✔✔True
The bsoil berodibility bfactor bin bthe bUniversal bsoil-loss bequation b(USLE) brelates
bprimarily bto bthe bsoil's binfiltration bcapacity band bstructural bstability. b- bcorrect
banswers✔✔True
Which bof bthe bfollowing bstatements bis btrue? b- bcorrect banswers✔✔Rill berosion
bchannels bcan bbe bremoved bby bordinary bcultivation.
Wind berosion bis bgenerally bnot baffected bby b____. b- bcorrect banswers✔✔soil bpH
Hydraulic bconductivity bis bcommonly bhigher bin bsoils bon bwhich bconventional btillage
bsystems bhave bbeen bused bthan bwhere bno-tillage bsystems bhave bbeen bfollowed. b-
bcorrect banswers✔✔False
A bsoil bhas bbeen bmanaged busing ba bno-till bsystem bfor b10 byears bfollowing bmany
byears bof bconventional btillage boperations. bWhich bof bthe bfollowing bchanges bin
bsurface bsoil bproperties bwould byou bexpect bdue bto bthe bno-till bmanagement bsystem?
b- bcorrect banswers✔✔Organic bmatter bcontent bwould bincrease.
The bP bfactor bin bthe bUniversal bsoil-loss bequation bis bconcerned bwith ball bbut bone bof
bthe bfollowing: b- bcorrect banswers✔✔soil berodibility.
After bdrying bto beliminate bthe bwater bin bplant blitter, bwhich btwo belements baccount bfor
babout b80% bof bthe bdry bweight? b- bcorrect banswers✔✔C band bO
Which bof bthe bfollowing bpools bcontain bthe blargest bamount bof bthe bworld's bcarbon? b-
bcorrect banswers✔✔Soil
Oxidation bor breduction bof binorganic bsoil bconstituents bsuch bas biron band bsulfur bis
bcarried bout bby bmembers bof bwhich bgroup(s) bof bmicroorganisms? b- bcorrect
banswers✔✔Bacteria
Plant broots bare ban bimportant bsource bof bcarbon bfor bmany bsoil borganisms bwhich
bare bbeneficial bto bplants. b- bcorrect banswers✔✔True
Most bsoil borganisms bare bheterotrophs. b- bcorrect banswers✔✔True
Which bof bthe bfollowing bis bnot ba bcharacteristic bof bsoil bcolloids? b- bcorrect
banswers✔✔Low bwater bholding bcapacity
Phosphate bavailability bis bconstrained bin balkaline bsoils bby bthe bpresence bof biron band
baluminum boxides. b- bcorrect banswers✔✔False
