Exam (elaborations)
SCSC-301 Exam 1 with verified answers
- Course
- Institution
SCSC-301 Exam 1 with verified answers
[Show more]
Content preview
SCSC-301 Exam 1 with verified answersAfter a growing season of heavy tillage traffic across a soil, a soil property that is
affected is: - ANSWERS✔✔ bulk density
From a biological point of view, the most important role of structural development in
fine textured soils is to provide an increase in: - ANSWERS✔✔ macro porosity
The purity of light reflected by a soil is called: - ANSWERS✔✔ chroma
A word used to describe the consistence of soil is: - ANSWERS✔✔ firm
In a soil, having a color of 10YR 4/1, the hue is: - ANSWERS✔✔ 10YR
At a given partial pressure gradient, diffusion is a function of: - ANSWERS✔✔ air-
filled porosity
A principal role of oxygen in soils is: - ANSWERS✔✔ oxidation of iron
Considering a soil as a medium for plant growth in terms of aeration, water supply,
and temperature, the most desirable structural type is: - ANSWERS✔✔ granular
Under normal aerated conditions, soil air compared to the atmospheric air almost
always contains a significantly higher percentage of: - ANSWERS✔✔ CO2
The soil components- air, solution, solids - arranged in order of increasing heat
conductance (lowest heat conductance first) are: - ANSWERS✔✔ air, solution, solids
In a clay loam soil horizon having a strongly developed fine, granular structure, the
soil aeration is likely to be: - ANSWERS✔✔ good
, Daily fluctuations in temperature at 2cm below the soil surface, when compared to
daily fluctuations at 15cm below the soil surface: - ANSWERS✔✔ are of greater
magnitude
The subsoil in College Station, Texas is cooler than either the surface soil or the
parent material: - ANSWERS✔✔ in the spring
Water in soil is: - ANSWERS✔✔ a transporting medium
The amount of heat stored in the soil in the fall at a given location is primarily a
function of soil: - ANSWERS✔✔ moisture
Water which drains downward in a soil consists of water which moves in response to
differences in: - ANSWERS✔✔ matric and gravitational potentials
Available water in soils is water held between the wilting coefficient and: -
ANSWERS✔✔ field capacity
In a soil layer containing large holes or channels open at the surface, water enters
the large holes: - ANSWERS✔✔ when the water reaches it
Water enters a very sandy subsoil from a clayey surface soil: - ANSWERS✔✔ only
after the clayey soil is saturated
A common primary silicate mineral which weathers to form secondary silicate
minerals in soils is: - ANSWERS✔✔ hematite
A typical moist surface soil contains approximately 25% by volume is: -
ANSWERS✔✔ air
One of the most soluble and therefore, easily weather minerals is: - ANSWERS✔✔
gypsum
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 Fordenken. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $15.49. 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