__________ is life bearing while __________ is barren.
B) soil dirt
Another word/phrase used to describe bedrock is ___________.
parent material
What allows soil to support various forms of plant and animal life?
The nutrients it contains
______ is a combination of particles of rocks, minerals, and organic matter produced through __________ processes.
soil, weathering
The following are the steps for Soil formation. Fill in the blanks.
1. Bedrock begins to disintegrate
2. ________ materials facilitate disintegration
3. ____________ form.
4. Developed soil supports thick ___________.
Organic, horizons, vegitation
Which soil horizon layer is the subsoil, and completes a basic mature soil.
D) A horizon
Why does Horizon B contain the nutrients in soil?
Because rain causes the nutrients found in the A Horizon to leach down into the B Horizon
Any mature soil must have a ________.
subsoil
Which horizon contains the nutrients needed for some deep root plants?
The B horizon
Which horizon contains the organic material in soil?
Horizon A
Another word for horizon A is _______.
Topsoil
As more organic matter and minerals are added to soil it starts to form ______.
layers
The carbonation of Limestone is a weathering process that occurs in which soil horizon
C) C horizon
In step 2 of the soil formation process, After the partly weathered parent material starts to gather organic matter, what happens to the parent material?
It moves downward
What type of soil would suppor a forest of 15-30 foot pine trees?
A) Mature soil
B) Immature soil
B) Immature soil
Large trees are supported by which kind of soil?
A) Mature soil
B) Immature soil
A) Mature soil
Which horizon is the top layer of soil and is dominated by organic matter, and leaf and stem litter?
C) O horizon
Which horizon layer is the zone of accumulation of organic matter and nutrients?
C) A horizon
Which horizon layer is the zone of illuvation (accumulation of clays)
D) B horizon
Generally, _______ areas tend to have very deep fertile soil since the ____________ will not wash the soil away
flat, rain water
What kind of soild is promoted by flat land?
A) Good
B) Bad
A) Good
If the soil is native to the area it formed, what relationship is it most likely to have with the parent rock?
