2.3.1 (Soil Formation) Flashcards
1
Q
Lithosphere
A
The thin layer in the soil.
2
Q
3 Main Ingredients Composed to Soil
A
- Minerals
- Organic Materials from the remains of dead plants and animals
- Pores that may be filed w/ air or water.
3
Q
% of Minerals in good quality soil?
A
45% Minerals
4
Q
% of Organic Matter in good quality soil?
A
5% Organic Matter
5
Q
% of Air in good quality soil?
A
25% Air
6
Q
% of Water in good quality soil?
A
25% Water
7
Q
Which soil property changes quickly (over hours)?
A
Soil Moisture
8
Q
Which soil property changes very slowly (THOUSANDS of YEARS)?
A
Mineral Transformations
9
Q
What do soils hold?
A
nutrients and water for plants and animals
