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RideAnS [48]
3 years ago
11

The uppermost horizon, horizon O, in this profile is composed mostly of _________, while the lower horizon, horizon C, is compos

ed mostly of _______.
A) silt; gravel.
B) gravel; rocks.
C) organic matter; rocks.
D) top soil; organic matter.
Biology
2 answers:
ivanzaharov [21]3 years ago
4 0

c is the correct answer

pickupchik [31]3 years ago
3 0

<u>Answer;</u>

C) organic matter; rocks.

The uppermost horizon, horizon O, in this profile is composed mostly of <u>organic matter</u>, while the lower horizon, horizon C, is composed mostly of <u>rocks.</u>

<u>Explanation;</u>

-Soil contains the following major horizons, that is A B and C. Some soils may have horizon O, which may be thin or thick or even lack in some soils. This O horizon is found at the surface of many soils and normally contains organic materials at various decomposition stages. these are materials such as plants, leaves and bugs.

-C horizon is the layer that is below the B horizon. It contains larger weathered fragments or broken up-bedrock.

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