Multiple Choice
Soil scientists recognize _______ major soil horizons: _______.
A) two; A and B
B) two; upper and lower
C) three; A, B, and C
D) four; top, top middle, middle, and lower
E) seven; 1, 2, 3, 4, 5, 6, and 7
Correct Answer:

Verified
Correct Answer:
Verified
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