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The Low-Down on DIRT!

Across
Laterite soils are good for making this building material.
Type of materials needed for soil to be fertile with a variety of nutrients; made up by the breakdown and decomposition of plants and animals.
Soil which has practically no humus
Water flows easily through this type of soil because of the large spaces between the inorganic particles.
What type of trees are found in pedalfer soils?
Scientists classify soil types by measuring the quantities of sand, clay and ____.
Soil which has come from somewhere else.
These cause a soil to be red in color.
The most important factor to determine soil type.
Another name for the A-Horizon; darkest layer
Type of materials such as weathered rock - clay, sand, silt, pebbles; makes up about half of the soil.
Found in the R-Horizon.
This layer is made up of partially weathered bedrock (parent material).
Another name for the B-Horizon; where clay accumulates
Layer of soil with concentrated amounts of calcium
the O-Horizon is made up of this organic material, the remains of plants and animals
Down
All the different layers of soil in one area.
Very small spaces between particles in this soil which hold a lot of water.
A mixture of rocks which have gone through physical and chemical weathering.
The number of years it may take soil to form in poor conditions OR how many types of soil there are.
Breaks down rocks in to tiny pieces to create soil.
The name for the original rock that is the inorganic portion of the soil.
What type of plants are found in pedocal soils?
Type of soil which is rich in aluminum
The name for the different layers of soil
Type of soil which is fertile and rich in calcium
This type of soil is made up of a variety of grain sizes.