The soil shown in the photograph below has a greenish or grayish tint, which may mean that 
A) it has abundant aluminum and/or iron oxides.
B) it contains abundant organic matter.
C) it has been waterlogged at some point.
D) there are salts or other minerals that have been deposited by the evaporation of water.
Correct Answer:
Verified
Q2: The most direct impact of the process
Q4: In general,the healthiest soil texture for plants
Q7: Soils that are most likely to be
Q8: Clay soils will usually have a higher
Q10: Which of the following is not a
Q11: In terms of particle sizes,secondary minerals are
Q12: The soil shown in the photograph below
Q17: Hygroscopic water
A)is generally unavailable to plants because
Q19: The soil with the highest cation exchange
Q20: The pore space,or porosity,of soils composed mainly
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