Soils are made up of a mineral portion, an organic portion, and air and water. What are the three mineral components of soil? Check all three.
clay
bits of plant material; dead organisms
silt
sand
Soils are made up of a mineral portion, an organic portion, air and water. What is meant by the word organic?
nonliving, mineral in composition
composed of several organs
material that was produced by or was/is part of a living organism
musical in nature; played on the organ
Soil composition and characteristics vary with depth. These differences in soils can be seen as layers in the soil called __________.
Entry 1:
The two processes which are most often responsible for the breakdown of rock into soil particles are (Choose the two that apply.)
accretion
weathering
deposition
erosion
Soils are formed from the breakdown of rock below them. This rock material is referred to as "parent material."
True
False
What are the three agents which can transport large amounts of soil from their area of origin to an area hundreds or thousands of miles away? These are "agents of erosion."
wind
glaciers
water
solar radiation
In the outline find your section on soil horizons. In it you will find a diagram representing a view of a soil cut away.
Which of the layers in this example represents the horizon that is the parent material?
O
A
B
C
In the outline find your section on soil horizons. In it you will find a diagram representing a view of a soil cut away.
Which of the layers in this example represents the horizon that is alive with roots, fungi, bacteria, worms, small arthropods like spiders and so on?
O
A
B
C
In the outline find your section on soil horizons. In it you will find a diagram representing a view of a soil cut away.
Which of the layers in this example represents the horizon that is very thin and contains large amounts of organic matter?
O
A
B
C
In the outline find your section on soil horizons. In it you will find a diagram representing a view of a soil cut away.
Horizon B in this example would be very difficult for soil organisms to move through because it would be a very hard layer.
True
False
clay
bits of plant material; dead organisms
silt
sand
Soils are made up of a mineral portion, an organic portion, air and water. What is meant by the word organic?
nonliving, mineral in composition
composed of several organs
material that was produced by or was/is part of a living organism
musical in nature; played on the organ
Soil composition and characteristics vary with depth. These differences in soils can be seen as layers in the soil called __________.
Entry 1:
The two processes which are most often responsible for the breakdown of rock into soil particles are (Choose the two that apply.)
accretion
weathering
deposition
erosion
Soils are formed from the breakdown of rock below them. This rock material is referred to as "parent material."
True
False
What are the three agents which can transport large amounts of soil from their area of origin to an area hundreds or thousands of miles away? These are "agents of erosion."
wind
glaciers
water
solar radiation
In the outline find your section on soil horizons. In it you will find a diagram representing a view of a soil cut away.
Which of the layers in this example represents the horizon that is the parent material?
O
A
B
C
In the outline find your section on soil horizons. In it you will find a diagram representing a view of a soil cut away.
Which of the layers in this example represents the horizon that is alive with roots, fungi, bacteria, worms, small arthropods like spiders and so on?
O
A
B
C
In the outline find your section on soil horizons. In it you will find a diagram representing a view of a soil cut away.
Which of the layers in this example represents the horizon that is very thin and contains large amounts of organic matter?
O
A
B
C
In the outline find your section on soil horizons. In it you will find a diagram representing a view of a soil cut away.
Horizon B in this example would be very difficult for soil organisms to move through because it would be a very hard layer.
True
False