The A horizon is usually ________ underlying layers because ________.
A) darker than it is made of dark-coloured,mafic minerals
B) darker than it contains humus
C) lighter than it is made of light-coloured,felsic minerals
D) lighter than it contains little humus,but a considerable amount of mineral particles
Correct Answer:
Verified
Q2: B horizons tend to
A)accumulate humus.
B)accumulate clay,iron and
Q3: A soil horizon that is 20 to
Q4: Which of the following is true of
Q5: The basic soil unit used in preparing
Q6: The science that deals with the origin,classification,and
Q7: A pedon is imagined as
A)a soil profile.
B)a
Q8: What material in the soil serves a
Q9: Farmers are concerned with soil from the
Q10: The general name for any distinct layer
Q11: A mixture of decomposed organic matter in
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