Soil Quiz II

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Soil Quiz II
By Crysta Hugo Lowndes Co. High School Dr.
James Corbett, Agriculture Teacher July 2005 To
accompany the Georgia Agriculture Education
Curriculum Modified for Colorado Soils
Curriculum 2006
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Words to know
Soil Moisture
Soil structure
Microorganism
other
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Terms for 1
Question Areas where water slows down and the
soil particles settle to the bottom.
Check Your Answer
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Terms for 1
Answer Deltas
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Terms for 2
Question Fine soil particles like silt and clay
deposited by the wind create what type of soils?
Check Your Answer
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Terms for 2
Answer Loess soils
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Terms for 3
Question Process that breaks down rock into
soil.
Check Your Answer
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Terms for 3
Answer Weathering
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Terms for 4
Question Organic material in the soil that
comes from living sources.
Check Your Answer
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Terms for 4
Answer Humus
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Terms for 5
Question Organisms that can be seen by the
unaided eye.
Check Your Answer
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Terms for 5
Answer Macroorganisms
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Soil Moisture for 1
Question What is available water?
Check Your Answer
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Soil Moisture for 1
Answer Amount of water between field capacity
and wilting point
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Soil Moisture for 2
Question What is wilting point?
Check Your Answer
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Soil Moisture for 2
Answer the point where the soil has too little
water and plants can no longer recover from
wilting
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Soil Moisture for 3
Question What is adhesion?
Check Your Answer
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Soil Moisture for 3
Answer Attraction of two different molecules
water to soil Water held by adhesion is not
available to plant
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Soil Moisture for 4
Question What is cohesion?
Check Your Answer
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Soil Moisture for 4
Answer Attraction of 2 similar molecules Water
held by cohesion is available to plant
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Soil Moisture for 5
Question What is field capacity?
Check Your Answer
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Soil Moisture for 5
Answer When soil contains the maximum amount of
available water
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Structure for 1
Question If most of the soil is formed into
peds and can be handled without breaking up, what
kind of structure does it have?
Check Your Answer
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Structure for 1
Answer Strong
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Structure for 2
Question Soil texture is the ______ of sand,
silt and clay in a soil sample.
Check Your Answer
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Structure for 2
Answer Percentage
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Structure for 3
Question peds are held together by _____.
Check Your Answer
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Structure for 3
Answer Humus
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Structure for 4
Question What is a clod?
Check Your Answer
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Structure for 4
Answer a mass of soil that is cemented together
unnaturally by a soil disturbance
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Structure for 5
Question What are six of the seven common soil
structures?
Check Your Answer
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Structure for 5
Answer 1.angular blocky 2.granular 3.platy
4.prismatic 5.columnar 6. Crumb 7.subangular
blocky
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Microorganisms for 1
Question _______ are bacteria that fix nitrogen
in the soil.
Check Your Answer
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Microorganisms for 1
Answer Rhizobia
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Microorganisms for 2
Question Rhizobia live in ______ on the roots
of leguminous plants.
Check Your Answer
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Microorganisms for 2
Answer Nodules
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Microorganisms for 3
Question When a plant dies, decomposition
returns the nutrients the plant took from the
soil back to the soil. What is this know as?
Check Your Answer
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Microorganisms for 3
Answer Carbon Cycle
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Microorganisms for 4
Question ______ are one celled organisms that
live in moist soil.
Check Your Answer
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Microorganisms for 4
Answer Protozoa
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Microorganisms for 5
Question _____ are tiny worms that live in the
soil. Many feed on the roots of plants.
Check Your Answer
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Microorganisms for 5
Answer Nematodes
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Other for 1
Question _____ are among the most abundant
animals that live in the soil.
Check Your Answer
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Other for 1
Answer Earthworms
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Other for 2
Question Earthworms enhance the _____ by
burrowing through the layers of soil.
Check Your Answer
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Other for 2
Answer Soil
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Other for 3
Question A crop that is grown for organic matter
and is turned back into the soil.
Check Your Answer
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Other for 3
Answer Green Manure
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Other for 4
Question What is the largest source of organic
matter in the soil?
Check Your Answer
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Other for 4
Answer Plant roots
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Other for 5
Question Why do producers use summer fallow in a
crop rotation?
Check Your Answer
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Other for 5
Answer To conserve water and nitrogen
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