Question

• ability of water to move through the ground.

gravel: high
clay: low

• mixture of 1 or more minerals, sediments, or particles
• list the layers of the soil from top to bottom

o
o
o
o

• the darkest layer of soil. contains the most nutrients

• the layer of soil that forms when excessive acid is present. forms insoluble \tubes of nutrients\
• list one way to reduce erosion

o
o
o
o

Explanation:

1. The term describes water movement through ground.
2. Defined as mixed mineral/particle material.
3. Soil layers follow standard top-bottom sequence.
4. Darkest, nutrient-rich top soil layer identified.
5. Acid-induced soil layer with nutrient tubes named.
6. Common erosion reduction methods listed.

Answer:

• Ability of water to move through the ground: Permeability
• Mixture of 1 or more minerals, sediments, or particles: Soil
• List the layers of the soil from top to bottom:
• O Horizon (Organic Layer)
• A Horizon (Topsoil)
• B Horizon (Subsoil)
• C Horizon (Parent Material)
• The darkest layer of soil. Contains the most nutrients: A Horizon (Topsoil)
• The layer of soil that forms when excessive acid is present. Forms insoluble "tubes of nutrients": Hardpan (or Claypan/Plow Pan)
• List one way to reduce erosion (examples):
• Planting cover crops
• Terracing sloped land
• Contour plowing
• Mulching bare soil