The inorganic material base from which soil forms is called:
A) horizons
B) ultisol
C) parent material
D) drift
Correct Answer:
Verified
Q4: Angular or blocky describes a soil's:
A)texture
B)profile
C)chemistry
D)structure
Q5: A high humus content makes soil appear:
A)red
B)black
C)yellow
D)gray
Q6: The clumping of soil grains is the
Q7: Positively charged plant nutrient ions are called:
A)loams
B)bases
C)horizons
D)silts
Q8: Broken bedrock is called:
A)laccolith
B)batholith
C)cocolith
D)regolith
Q10: The soils of boreal forests are typically:
A)yellow
B)black
C)gray
D)orange
Q11: The key factor in determining how the
Q12: The colors of soils in dry climates
Q13: Soil texture is important because it influences
Q14: Red soils are usually high in:
A)iron
B)humus
C)calcium carbonate
D)salt
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