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SCSC 301 Exam 1 & 2 Questions and Answers (Latest 2025) Verified Solutions
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SCSC 301 Exam 1 & 2 Questions and Answers (Latest 2025) Verified Solutions
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SCSC 301 Exam 1 & 2 Questions andAnswers (Latest 2025) Verified Solutions
A typical moist surface soil contains approximately 1 to 5%
by volume of ________________. - Correct Answer ✅organic
matter
A common primary silicate mineral which weathers to form
secondary silicate minerals in soil is _______________. -
Correct Answer ✅hornblende
A primary iron mineral that is resistant to weathering: -
Correct Answer ✅hematite
One of the more soluble and therefore, easily weather
minerals in acid soils is: - Correct Answer ✅calcite
A properly used in distinguishing among minerals in hand
specimens is: - Correct Answer ✅color
The properties of soil are due to the combined effects of
__________________, as modified by relief, acting on parent
material over time. - Correct Answer ✅climate and biota
,SCSC 301 Exam 1 & 2 Questions and
Answers (Latest 2025) Verified Solutions
Soils which support aerobic plant growth must contain: -
Correct Answer ✅gaseous oxygen
The two dimensional depiction of soil in a soil pit is commonly
referred to as a soil: - Correct Answer ✅profile
In the following question, list the appropriate letter for each
part of the question in the order of occurrence in the
statement.
Surface soils are (a. more, b. same, c. less) porous; (a. more,
b. same, c. less) dense and commonly of (a. coarser, b. finer)
texture than subsoils. - Correct Answer ✅Surface soils are
(*a. more*, b. same, c. less) porous; (a. more, b. same, *c.
less*) dense and commonly of (*a. coarser*, b. finer) texture
than subsoils.
(a, c, a)
The passive soil forming factor is: - Correct Answer
✅parent material
, SCSC 301 Exam 1 & 2 Questions and
Answers (Latest 2025) Verified Solutions
The four most abundant metallic elements in most soils and
rocks that are essential for ALL plants are: - Correct Answer
✅Ca, Mg, K, and Fe
A soil typically contains a higher percentage of
_______________ than a rock which is derived from the rock. -
Correct Answer ✅iron
Materials transported by gravity are: - Correct Answer
✅colluvial
An example of a sedimentary rock and its corresponding
(similar in composition) metamorphic rock is: - Correct
Answer ✅shale and slate
A sorted, transported parent material that will not contain
coarse fragments is: - Correct Answer ✅loess
The reactivity of materials in the soil weathering environment
is a function primarily of: - Correct Answer ✅particle size
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