The reddish-brown color in the B horizon of eastern U.S. forest soils are caused by:
A) the accumulation of red decomposed leafs
B) the addition of aluminum and iron oxides from above
C) the removal of grayish salts by ground water
D) the decomposition of reddish organisms in the soil
Correct Answer:
Verified
Q12: A soil profile shows a sequence of
Q13: Where would soil formation be relatively rapid?
A)
Q14: The soil formation process involving the introduction
Q15: Loess is:
A) loose mixtures of minerals and
Q16: Soil air contains more _ and less
Q17: The R soil horizon stands for _.
A)
Q18: In the tropics, what causes organic matter
Q20: All soils have distinct horizons that are
Q21: Most tropical soils are rich in nutrients
Q22: The process of translocation occurs only in
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