Weathering, Erosion, Soil and Soil Conservation Exam Prep

The process of moving Earth’s materials from one place to another by water, wind, or ice is.........

• Mechanical Weathering

• Erosion

• Deposition

• Weathering

The breaking down of Earth’s materials by chemicals is.....

• Mechanical Weathering

• Weathering

• Erosion

• Chemical Weathering

Dark nutrient rich part of soil that is made of recently decomposed material

• Clay

• Loam

• Top Soil

• Humus

Deepest layer of the soil that has not been weathered

• Top Soil

• Decomposer

• Bed Rock

• Mechanical Weathering

Topsoil layer made of recently decayed and decomposed material mixed with weathered pieces of rock

• A Horizon

• B Horizon

• C Horizon

• D Horizon

Humus is decayed living/organic matter. It adds _______ to the soil.

• worms

• nutrients

• air

• sunlight

• smell

What are soil layers called?

• Rock

• Horizons

• Layers

• Profile

Which layer is the parent material?

• Horizon O

• Horizon A

• Horizon B

• Horizon C

• Horizon R

Which layer is the subsoil?

• Horizon O

• Horizon A

• Horizon B

• Horizon C

• Horizon R

What is the layer of soil that contains humus, leaf litter, and other organic matter called?

• O - Organic

• A - Topsoil

• B - Subsoil

• R - Bedrock