Soils with thick horizons consisting mainly (> 30% by weight) of organic matter and that form in topographic depressions or low-lying places usually belong to the order ______.
A) Alfisols
B) Vertisols
C) Histosols
D) Umbrasols
E) Spodosols
Correct Answer:
Verified
Q1: The active fraction of soil organic matter
Q2: Biomass consists of _.
A)living organisms and cells
B)dead
Q3: The labile organic matter in the soil
Q4: Soil organic matter consists of _.
A)living organisms
Q5: To avoid a nitrate depression period when
Q7: Which of the following added to a
Q8: Detritus consists of _.
A)living organisms and cells
B)dead
Q9: Which of the following is a greenhouse
Q10: Nearly all organic compounds from which living
Q11: Alcohols,methane and organic acids of various kinds
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