The O horizons of a soil are dominantly organic horizons occurring above mineral horizons.
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Q26: Alluvial fans are usually characterized by_ soils.
A)sandy
Q27: Marine sediments are typical parent materials in
Q28: Residual parent materials have formed in place
Q29: Climate influences not only the rate of
Q30: Organic deposits are most common in areas
Q32: Igneous rocks are formed when molten magma
Q33: Secondary minerals are recrystallized products of the
Q34: Exfoliation is caused by changes in _.
A)hydration
B)oxidation
C)temperature
D)carbon
Q35: Alluvial parent materials are those that have
Q36: Residual parent materials have generally been subjected
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