Multiple Choice
The A horizon is usually ________ underlying layers because ________.
A) darker than; it is made of dark-colored, mafic minerals
B) darker than; it contains humus
C) lighter than; it is made of light-colored, felsic minerals
D) lighter than; it contains little humus, but a considerable amount of mineral particles
Correct Answer:
Verified
Correct Answer:
Verified
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