Question

In a west to east transect across the 98th meridian in the United States, which of the following is the correct sequence of soil orders?
A) Alfisols, Aridisols, Ultisols
B) Aridisols, Oxisols, Mollisols
C) Aridisols, Mollisols, Alfisols
D) Alfisols, Mollisols, Utilsols

Answer

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