Soil Review

What is the name of Horizon 1?

• Subsoil 
• Topsoil
• Bedrock 
• Parent Rock

Which layer of soil is lighter in color because of lost minerals?

• E

• B

• C

• R

Soil formation begins with the weathering of 

• litter.
• bedrock.
• the A horizon.
• humus.

Soil is made of:

• pieces of rock

• air and water

• matter that was once alive

• all of the above

Which of the following is not an example of soil damage?

• Erosion
• Overgrazing
• Digging for buried treasure
• Mining

What is the soil conservation technique in which rows of trees are planted along the edges of a field to block the wind from eroding fields and trap the soil?

• Terracing
• Cover Crops
• Windbreaks
• Conservation Plowing

Which of the following is the way to stop soil loss by plowing fields along curves of a slope to prevent soil from washing away with the rain?

• Contour Plowing 
• Cover Crops
• Conservation Plowing
• Terraces

Which of the following is not a method to reduce soil erosion?

• Conservation plowing

• Crop rotation

• Contour plowing

• Clearing vegetation

When there are not enough plants to hold topsoil in place, water and  _______ carry the topsoil away, leaving the subsoil exposed

• sunlight
• birds
• magnetic fields
• wind

What soil conservation technique is this?

• Crop Rotation
• Wind Breaks
• Contour Plowing
• No-Till Farming