SCSC 301 EXAM 1 activities Questions With Complete Solutions
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Course
SCSC 301
Institution
SCSC 301
SCSC 301 EXAM 1 activities Questions With Complete Solutions
What are the corresponding colors with the associated soils?
__1__ colored soils come from organic matter.
__2__ colored soils come from iron and aluminum oxides.
__3__ colored
.___ and ___ oxides are the *most resistant* to weathe...
SCSC 301 EXAM 1 activities Questions With
Complete Solutions
What are the corresponding colors with the associated soils?
__1__ colored soils come from organic matter.
__2__ colored soils come from iron and aluminum oxides.
__3__ colored
.___ and ___ oxides are the *most resistant* to weathering. - ANSWER-Fe and Al
____ describes the unconsolidated debris overlying the lithosphere, composed of the O, A, E and B
horizons.
A. parent material
B. solum
C. regolith
D. soil - ANSWER-C. regolith
regolith is altered by physical, chemical and biological weathering and decay, formation of new minerals
and Organic matter that can turn into soil.
____ is a dynamic natural body having properties derived from the combined effects of climate and
biota, modified by topography acting on parent materiel over periods of time.
A. horizons
B. solum
C. soil
D. regolith - ANSWER-C. soil
REMEMBER THE 5 SOIL FORMING FACTORS
,____ is the arrangement of particles into aggregates
A. soil texture
B. soil structure
C. soil formation
D. soil - ANSWER-B. soil *structure*
____ is the vertical section showing the different layers of soil, extending to the parent material.
A. soil pit
B. horizons
C. soil profile
D. solum - ANSWER-C. soil profile
soil pits are used to identify and study soils, often used by pedologists for soil taxonomy.
____ weathering is the decomposition of rocks affiliated by hydration/hydrolysis, acid reactions,
chemical complexation and oxidation/reduction. - ANSWER-CHEMICAL
____ weathering is the disintegration or structural breakdown of rocks influenced by temperature,
abrasion of water, wind & ice and plants & animals. - ANSWER-PHYSICAL
_____ are inorganic material derived from rocks
A. matter
B. minerals
C. soil
D. nutrients - ANSWER-B. minerals
_____ is compromised of carbonaceous substances that include compounds produced by current & past
metabolisms of soil and contain living & dead biomass.
A. horizons
B. soil
C. soil organic matter
,D. biota - ANSWER-C. soil organic matter
_____ is the proportion of particle sizes
A. soil texture
B. soil structure
C. soil formation
D. soil triangle - ANSWER-A. soil *texture*
texture is important for many soil properties
_____ rocks are formed when weathering products are released from other, older rocks containing
primary or secondary minerals.
*most common rock* - ANSWER-Sedimentary
formed by:
> deposition, recrystallization
> compaction or cementation
EX:
Granite > quart sand > [cemented by Ca, Fe, I in water] > sandstone
_____ rocks are made by heat or pressure. - ANSWER-Metamorphic
- made from igneous or sedimentary rocks when earth continental plates shift
ex.
granite > schist
granite/sandstone > quartzite
shale > slate
limestone > marble
, ______ is a primary silicate mineral that is resistant to weathering and is dominate in these two texture
classes ______ & _____.
A. mica, silt & clay
B. silicate clays, silt & clays
C. quartz, clay & silt
D. Quartz, sand & silt
*from quiz 4* - ANSWER-D. Quartz, sand & silt
"aggregation and arrangement of particles" is the definition for:
A. Structure
B. Texture
C. Porosity - ANSWER-A. Structure
*how the particles are aggregated*
- dynamic property that can be changed by management
"capacity to withstand stress without giving way by rupturing or deformation" is the definition for:
A. consistence
B. compaction
C. soil strength
D. expansion - ANSWER-C. soil strength
"making soil more dense by removing air space" is the definition for:
A. consistence
B. expansion
C. compressibility
D. compaction - ANSWER-D. compaction
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