unit three: earth $100 $200 $400 $300 $400 carbon cycleinorganicssoil chemistrysoil erosion $300...
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Unit Three: Earth
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$100 $100
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Carbon Cycle
Inorganics Soil Chemistry
Soil Erosion
$300 $300 $300
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$500 $500 $500 $500
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The burning of a hydrocarbonwith oxygen to produce
carbon dioxide and water
What is combustion?
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A gaseous element atroom temperature witha triple bond betweentwo identical atoms.
What is nitrogen?
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This substance is a componentof soil with extremely small
particle sizes leading to a tendency to hold water.
What is clay?
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The down slope movementof material under theinfluence of gravity.
What is mass wasting?
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A metric prefix that meansone billion.
What is a Giga?
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Made from an insoluble mineraland essential for plant life
it is the “P” in N-P-K.
What is phosphorus?
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The substance that exists below the C horizon. Soil
is made from this.
What is parent material?
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Deep channels in the soil formed from rapidly
moving water.
What are gullies?
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The three states of coal formation.
What are peat, bituminous and anthracite?
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This yellow element maybe added to the soil to
lower its pH.
What is sulfur?
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This soil texture is idealfor growing plants and
consists of nearly equal amountsof sand, silt and clay.
What is loam?
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These stair-step like structureshelp prevent soil erosion.
What are terraces?
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These long chains ofsugar molecules provide
energy to animals when they are ingested.
What are carbohydrates?
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Urea, nitrates and ammonia
What are usable forms of nitrogen?
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These soils are high in iron andshow evidence of much oxidation due to their
orange or yellow colors.
What are “rusty” soils?
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A period in U.S. history acharacterized by severe drought,
dust storms and erosion of farm land.
What is the Dust Bowl?
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This form of carbon ends up in sea shells and coral reefs.
What are carbonates?
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These sixteen elementsare essential
for plant growth.
What are macro and micro nutrients?
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The holes in soil that collapsewhen the soil is disturbed.
What is soil porosity?
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Methods that preventsoil erosion.
What is soil conservation?