Test 1
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Avalanches are made up of this coarse rock fragment
Colluvium
Stream deposits found at the base of a mountain
Alluvial fans
Sediment carried and deposited by flood water
Floodplain deposits
Wind blown Allophone clay deposits
Volcanic ash
Wind blown material made of silt, fine sand and coarse clay
Loess
Soil formed in place
Residual
Materials deposited directly by ice
Glacial till
Lucustrine deposits
Soils that were deposited and developed as glacial lakes dried up
Peat
Accumulations of organic material usually building up in anaerobic conditions…(wet)
6 main roles of soil in an ecosystem
• Gas exchange • Plant medium • Construction surface • O.M. Recycling • Houses living organisms • Water filtration
What is the broadest category in the soil taxonomy hierarchy
Order
What is the most specific category in the soil taxonomy hierarchy
Series
What are 4 practices that farmers are using to improve soil health
• Cover cropping • Conservation tillage • Introducing O.M. • Diversity through crop rotation
God calls us to be good ________ of the land
Stewards
A densely compact layer of materials found in the subsoil
Fragipan
The most productive and highly fertile of all the soil orders
Mollisols
What do mottles indicate in a soil?
Poor drainage
The ease with which the soil is tilled
Tilth
The unsaturated zone in the soil is termed as the _______ zone, it lies between the earths surface and the water table
Vadose
The relative proportions of sand, silt and clay in a soil is called soil ________.
Texture
A clump of soil is called a _____ or __________.
Ped or aggregate
The type of soil texture in which the properties of the soil separates are exhibited equally
Loam
Two colloidal components in soil are _____ and ______
O.M. And clay
The soil property that is most easily changed is
Structure