Soil Part 1

The steeper the landscape, the ______ the erosion.

• lower

• higher

• same

• none

What is the percent of clay in a soil sample with 10% sand and 83% silt?

• 7%

• 10%

• 17%

• 83%

What soil texture will I have with 15% clay, 25% sand, and 60% silt?

• Loam

• Silty, clay, loam

• Sandy loam

• Silt loam

This is needed for movement of water and water holding.

• Air

• Soil texture

• Pore space

• Soil tilth

This soil particle has medium water drainage qualities.

• Sand

• Silt

• Clay

Soil sample that is 60% clay, 30% silt, and 10% sand has which texture?

• clay

• clay loam

• sandy loam

• silt

Soil sample that is 10% clay, 20% silt, and 70% sand has which texture?

• clay

• clay loam

• sandy loam

• silt

Soil is formed by the breaking down of rocks by the action of wind, water and climate. This process is called

• Humification

• Weathering

• Soil erosion

• None of the above

Which of the following is the correct order of soil particles in order of increasing particle size?

• clay-sand-silt
• sand-clay-silt
• silt-clay-sand
• clay-silt-sand

Soils that have a pH of 3.7 are considered

• Alkaline

• Acidic

• Basic

• Neutral