Soil Flashcards
Soil is the product of ______
weathering
what is soil the product of…
weathering
What makes soil important?
it plays a role in ensuring bio-diversity, allowing plants to grow, and animals to live
Soil is composed of the end ______ of weathering
products
What are some examples of the products of weathering?
Sand, silt, and clay
Soil is composed of the sand, silt, clay and other products of weathering, but it also has _______ in its complex mixture.
humus
What is humus?
decaying organic matter
Are air and water in soil?
yes
What are factors of soil formation?
- Parent material
- Climate
- Organisms
- Topography
- Time
- Human activity
A soils parent material is which ______ are breaking down to form that soil
rocks
will soils in Florida be different than soils in Pa?
Yes
Soils are classified by…
their percentages of clay, sand, and silt
Any area that has soil will have different ______ within that soil
layers
Layers of soil are called…
soil horizons
Soil profiles consist of….
a sequence of soil horizons
What is the distinct characteristic of the O-Horizon?
is a mixture of organic matter
What is the distinct characteristic of the E-Horizon?
It is a light-colored layer marked by removal of soluble material
What is the distinct characteristic of the B-Horizon?
it is the maximum accumulation of clay minerals
What is the distinct characteristic of the C-Horizon?
It is the parent rock that has not been weathered yet
Is soil a renewable or non-renewable resource?
non-renewable
What are two soil conservation techniques?
Cover crops
contour plowing
Cover cropping is when you keep a plant in the soil year round to prevent _______ and erosion
weathering
