Exam (elaborations)
SCSC 301 - EXAM 3, TAMU, DR. HOWE QUESTIONS AND ANSWERS
- Course
- Institution
SCSC 301 - EXAM 3, TAMU, DR. HOWE QUESTIONS AND ANSWERS
[Show more]
Content preview
TAMU SCSC 301 FinalAfter9a9growing9season9of9heavy9tillage9traffic9across9a9soil,9a9soil9property9that9is9least9a
ffected9is:9-9ans-=Particle9density
From9a9biological9point9of9view,9the9most9important9role9of9structural9development9in9clay
ey9textured9soils9is9to9provide9an9increase9in:9-9ans-=macro9porosity
The9purity9of9light9reflected9by9a9soil9is9called:9-9ans-=chroma
A9word9used9to9describe9the9consistence9of9a9soil9is:9-9ans-=plastic
A9soil9horizon9in9which9the9supply9of9gases9is9adequate9for9optimum9biological9activity9is9
said9to:9-9ans-=be9well9aerated
In9a9soil,9having9a9color9of910YR94/1,9the9value9is:9-9ans-=4
10Y9-9hue
19-9chroma
At9a9given9pressure9gradient,9diffusion9is9a9function9of:9-9ans-=total9air9porosity
A9principal9role9of9oxygen9is9soils9is:9-9ans-=oxidation9of9iron
Considering9a9soil9as9a9medium9for9plant9growth9in9terms9of9aeration,9water9supply,9and9t
emperature,9the9most9desirable9structural9type9is:9-9ans-=granular
Under9normal9aerated9conditions,9soil9air9compared9to9the9atmospheric9air9almost9alway
s9contains9the9same9percentage9of:9-9ans-=N2
The9soil9components9-9solids,9solution,9air9-
9arranged9in9order9of9decreasing9heat9capacity9(highest9capacity9first)9are:9-9ans-
=solution,9solids,9air
In9a9clay9loam9soil9horizon9having9a9strongly9developed9fine,9granular9structure,9the9soil9
aeration9is9likely9to9be:9-9ans-=good
Daily9fluctuations9in9temperature9at915cm9below9the9soil9surface,9when9compared9to9dail
y9fluctuations9at92cm9below9the9soil9surface:9-9ans-=occur9later9in9the9day
The9subsoil9is9cooler9than9either9the9surface9soil9or9parent9material:9-9ans-
=in9early9spring
, Water9in9the9soil9is:9-9ans-=a9good9heat9sink
The9rate9of9soil9warming9in9the9spring9at9a9given9location9is9primarily9a9function9of9soil:9-
9ans-=moisture
Water9which9drains9downward9in9a9soil9consists9of9water9which9moves9in9response9to9diff
erences9in:9-9ans-=matric9and9gravitational9potentials
Available9water9in9soils9is9water9held9between9the9wilting9coefficient9and:9-9ans-
=field9capacity
In9a9soil9layer9containing9large9holes9or9channels9open9at9the9surface,9water9enters9the9la
rge9holes:9-9ans-=by9gravity9flow9only
Water9enters9a9very9clayey9subsoil9from9a9sandy9surface9soil:9-9ans-
=as9soon9as9the9wetting9front9reaches9it
A9common9primary9silicate9mineral9which9weathers9to9form9secondary9silicate9minerals9i
n9soils9is:9-9ans-=horneblend
A9typical9moist9surface9soil9contains9approximately919to95%9by9volume9of9____________
.9-9ans-=organic9matter
One9of9the9more9soluble9and9therefore,9easily9weathered9minerals9in9acid9soils9is:9-9ans-
=calcite
A9primary9iron9mineral9that9is9resistant9to9weathering9is:9-9ans-=hematite
Primary9silicate9mineral9resistant9to9weathering9and9dominates9sand/
silt9of9most9soils9is:9-9ans-=quartz
The9properties9of9soil9are9due9to9the9combined9effects9of9__________________,9as9mod
ified9by9relief,9acting9on9parent9material9over9time.9-9ans-=climate9and9biota
A9property9used9in9distinguishing9among9minerals9in9hand9specimen9is:9-9ans-=color
The9two9dimensional9depiction9of9soil9in9a9soil9pit9is9commonly9referred9to9as9a9soil:9-
9ans-=profile
Soils9which9support9aerobic9growth9must9contain:9-9ans-=gaseous9oxygen
A9passive9soil9forming9factor9is:9-9ans-=parent9material9
(and9time)
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller AGRADEPROMASTER. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $11.99. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
84866 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now