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2.3.1 (Soil Formation)
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Total cards: 9•Content version: v4•Public deck•Updated: 8/1/2026
Card preview (9)
#1
Front (Question)
Lithosphere
Back (Answer)
The thin layer in the soil.
#2
Front (Question)
3 Main Ingredients Composed to Soil
Back (Answer)
• Minerals • Organic Materials from the remains of dead plants and animals • Pores that may be filed w/ air or water.
#3
Front (Question)
% of Minerals in good quality soil?
Back (Answer)
45% Minerals
#4
Front (Question)
% of Organic Matter in good quality soil?
Back (Answer)
5% Organic Matter
#5
Front (Question)
% of Air in good quality soil?
Back (Answer)
25% Air
#6
Front (Question)
% of Water in good quality soil?
Back (Answer)
25% Water
#7
Front (Question)
Which soil property changes quickly (over hours)?
Back (Answer)
Soil Moisture
#8
Front (Question)
Which soil property changes very slowly (THOUSANDS of YEARS)?
Back (Answer)
Mineral Transformations
#9
Front (Question)
What do soils hold?
Back (Answer)
nutrients and water for plants and animals