Erosion Four Corners

Last man standing!(most likely going to be a woman…

Just saying…)

When rill erosion is not controlled, the MAIN result is:

1-Aseptic erosion.

2-Glacial erosion.

3-Gully erosion.

4-Sheet erosion.

When topsoil is removed at an excessive rate, usually caused by humans, it is BEST

called:

1-Accelerated erosion.

2-Glacial erosion.

3-Natural erosion.

4-Shore erosion.

The MAIN type of erosion that happens on sandy soils is: 1-Glaciers.

2-Land slippage.

3-Water.

4-Wind.

Of all the types of erosion, which form is the MAJOR cause of soil loss in North

America?

1-Glacier erosion

2-Land slippage

3-Water erosion

4-Wind erosion

When small channels form on sloping land where running water from precipitation has washed soil

away, it is BEST called: 1-Gully erosion.

2-Rill erosion.

3-Sheet erosion.

4-Slippage erosion.

Land slippage is best described as soil erosion that occurs:

1-On level, clayey soils.

2-On bottomlands near rivers.

3-On sloping, water saturated soils.

4-On sandy soils near the tree line.

The planting of vegetation on excavated soil to hold it in place is

a land treatment called:

1-Cover crop. 2-Mulching.

3-Silt fence.

4-Strip cropping.

The use of rip-rap, fabrics, straw, vegetation or concrete on a creek

or roadside bank to prevent erosion is called:

1-Mulching.

2-Silt fence.

3-Stabilizing.

4-Waste management.

Planting on the contour is a soil conservation method described as:

1-Making ridges of earth across a slope.

2-Planting across the slope of a hill.

3-Planting different crops from year to year.

4-Constructing small ditches across slopes.

Not planting the same crop in the same place year after year is know as:

1-Conservation tillage.

2-Diversion ditchers.

3-Rotating crops.

4-Strip cropping.

Planting different crops in alternate sections on sloping land is called:

1-Conservation tillage.

2-Rotating crops.

3-Strip cropping.

4-Terracing.

What is it called when rows of trees are planted to prevent soil

erosion on level, sandy land?

1-Conservation tillage

2-Diversion ditch

3-Strip cropping

4-Windbreak