Earthworms ________.
A) are underneath almost all Earth's unfrozen last surface
B) excrete casts
C) are also known as bacteria
D) usually deplete soil fertility
E) have many more species than insects
Correct Answer:
Verified
Q9: In terms of topography, the deepest soils
Q10: The processes that deepen and age soils
Q11: Earthworms _.
A) literally "suck" nitrogen out of
Q12: The following is not an important soil
Q13: The true soil layer is known as
Q15: Globally, the influence of this soil-forming factor
Q16: Parent material is closely associated with which
Q17: Soils are considered part of the _.
A)
Q18: Humus is associated with _.
A) a light
Q19: Which of the following is NOT considered
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