NC Envirothon

The movement of organic and inorganic matter within a soil profile is

• Additions

• Losses

• Transformations

• Translocations

Tags

NGSS.MS-LS2-3

The downward entry of water into the immediate surface of soil is

• Infiltration

• Percolation

• Leaching

• Permeability Flow

Tags

NGSS.MS-ESS2-4

What is the dominant soil order in NC?

• Mollisols

• Alfisols

• Ultisols

• Histosols

Sheet and rill erosion remove an average of ____ tons of soil from every acre of cropland per year.

• 2

• 5

• 10

• 15

The soil forming factors are

• air, water, mineral matter, organic matter, vegetation

• sand, silt, clay, organic matter

• climate, time, parent material, topography, vegetation

• temperature, moisture, freezing, thawing, wetting, drying

The abbreviation CEC stands for:

• clay exchange capacity

• complete extractable cations

• cation exchange capacity

• cation extendable concentration

• none of the above

Gray colors in lower soil horizons are usually an indication of what?

• the presence of oxygen

• sandy soils

• the lack of oxygen

• a plow layer

Which of the following are most responsible for giving color to soil?

• nitrogen and boron

• sand, silt, and clay

• pH and aluminum

• organic matter and iron

Which of the following shapes best enable a fish to move quickly through the water in search of live food and provides stability in fast moving water?

• streamlined

• broad

• flattened

• pan

This type of wetland is associated with lakes

• Marine

• Palustrine

• Lacustrine

• Estuariane