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CRSS 3060 EXAM 1 WITH COMPLETE SOLUTIONS

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CRSS 3060 EXAM 1 WITH COMPLETE SOLUTIONS Hydrolysis - Answer- a chemical decomposition reaction in which a chemical bond is split and the elements contained in water are added Hydration - Answer- A mineral weathering process wherein water molecules combine with soil constituents Igneous r...

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  • October 29, 2024
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  • 2024/2025
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CRSS 3060 EXAM 1 WITH COMPLETE
SOLUTIONS
Hydrolysis - Answer- a chemical decomposition reaction in which a chemical bond is
split and the elements contained in water are added

Hydration - Answer- A mineral weathering process wherein water molecules combine
with soil constituents

Igneous rock - Answer- a rock that formed by the cooling and solidification of liquid parts
of the lithosphere

Loess - Answer- deposit of windblown soil particles, largely silt size

metamorphic rock - Answer- rock formed by recrystallization of igneous or sedimentary
rock under great pressure and heat whereby the minerals contained in the rock become
reoriented

Oxidation - Answer- a mineral weathering process wherein oxygen ions combine with
multivalent elements such as iron, loss of electrons from an atom, molecule, anion, or
cation

regolith - Answer- unconsolidated material above solid bedrock

sedimentary rock - Answer- a rock composed of sediment, that is, deposits made by
water, wind, ice, and gravity

secondary mineral - Answer- a mineral formed by weathering from a primary mineral.
For example, Kaolinite is a secondary mineral formed from feldspar.

solum - Answer- The A and B horizons together or the single one of these that overlies
the C horizon at a site

fine earth - Answer- less than 2mm in diameter
sand, silt, and clay
major role in plant growth

course earth - Answer- greater than 2mm in diameter
gravel, stones

sand particles - Answer- 2 to 0.05mm

, silt particles - Answer- 0.05-0.002 mm. Too small to see without a microscope or to feel
individually. Feels smooth, but not sticky, even when wet. Has a floury feel.

clay particles - Answer- less than 0.002mm in diameter

soil texture - Answer- an expression of the relative amounts or percentages of sand, silt,
and clay. Permanent property.

soil structure - Answer- the arrangement of soil particles

porosity - Answer- the volume occupied in soil by pores
good number is 50%

red = - Answer- iron is oxidized, not hydrated

yellow = - Answer- indicated hydration and sometimes less oxidation

gray = - Answer- indicates chemical reduction caused by wetness and lack of oxygen

colloid particles - Answer- clay and organic particles that are so small they tend to
remain suspended in standing water

rhizosphere - Answer- the volume of soil, water, and air plus associated organisms
immediately around the root of a plant

name the six physiographic regions of Georgia - Answer- Valley and Ridge, Blue Ridge,
Piedmont, Sand Hills, Southern Coastal Plain, and Flatwoods

what is the oldest, most mature landscape of the Southeast? - Answer- Piedmont

hydrology equation - Answer- P = ET + Q + change in S

breakdown of hydrology equation - Answer- Precipitation, Evaporation and
Transpiration, water discharge, Storage of water in soil

soil - Answer- the layer(s) of generally loose mineral and/or organic material that are
affected by physical, chemical, and/or or biological processes at or near the planetary
surface, and usually hold liquids, gases and biota and support plant.

soil functions - Answer- Plant growth media, regulate water supply, recycle raw
materials, habitat for soil organisms, engineering medium

the four processes - Answer- additions, losses, transformations, translocations

additions - Answer- largely humus additions to the A horizon

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