Multiple Choice
Humus ____.
A) is the material always comprising the topmost soil horizon
B) is the dark, organic-rich material formed by bacterial decay
C) is also known as organic litter
D) always includes large amounts of sediments
E) forms from the chemical weathering of the parent rock
Correct Answer:
Verified
Correct Answer:
Verified
Q48: What is differential weathering?
Q49: Horizon A in a soil is _.<br>A)low
Q50: Why are soils considered one of our
Q51: An overall average rate of soil formation
Q52: In the tropics where chemical weathering is
Q53: Salinization of soils _.<br>A)aids in plant growth<br>B)makes
Q54: Organisms contribute to chemical weathering by _.<br>A)mixing
Q55: Erosion is the _.<br>A)movement of weathered material
Q56: The actions of _ and _ are
Q57: _ refers to reactions with oxygen to