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SCSC 301 Final Exam Questions and Answers (Latest Update 2025) Verified Answers
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SCSC 301 Final Exam Questions and Answers (Latest Update 2025) Verified Answers
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SCSC 301 Final Exam Questions andAnswers (Latest Update 2025) Verified
Answers
Which of the following is NOT considered to be a function of
soil? - Correct Answer ✅а. Regulate water supplies
b. Modify atmosphere
с. Medium for plant growth
d. Recycle raw materials
e. They are all functions and services of soil
D
A soil that supports plant life must provide ——to the roots of
the plants. - Correct Answer ✅Oxygen and Nutrients
A soil contains A, E, B, and C master horizons. The A, E, and B
horizons are considered - Correct Answer ✅Soil solum
Which master horizon is considered the horizon of
accumulation (i.e., illuviation)? - Correct Answer ✅B
,SCSC 301 Final Exam Questions and
Answers (Latest Update 2025) Verified
Answers
Which master horizon is considered the horizon of eluviation?
- Correct Answer ✅E
In an ideal surface soil (with good conditions for plant
growth), the percent of air is and the percent water is overall
(considering both solid and pore spaces). - Correct Answer
✅25%, 25%
Which horizon is a mix of mineral and organic matter,
generally porous, has high amounts of biological activity and
often has less clay? - Correct Answer ✅A
Compared to the atmosphere, soil has a higher concentration
of - Correct Answer ✅Carbon Dioxide (CO2)
Which of the following primary minerals is most resistant to
weathering? - Correct Answer ✅Quartz
, SCSC 301 Final Exam Questions and
Answers (Latest Update 2025) Verified
Answers
Which element is more concentrated in soil than in rocks and
it not an essential nutrient for plants? - Correct Answer ✅Al
(aluminum)
Primary minerals have chemical or no chemical alteration? -
Correct Answer ✅have had no chemical alteration
The specific term used to describe deposits of wind-blown
silt-sized particles that will serve as parent materials is -
Correct Answer ✅Loess
Weathering is greatest in tropical humid or tropical arid -
Correct Answer ✅Tropical humid
Soils with alluvium parent materials are likely to form.. -
Correct Answer ✅near rivers and streams
Effective precipitation is greatest where - Correct Answer
✅at the base of a slope/valley since water can enter soil
from precipitation and from runoff
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