state three points of differences between horizon a and horizon b
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Difference between horizon A and B
The mineral soil usually starts with an A horizon. If a well-developed subsoil horizon as a result of soil formation exists, it is generally called a B horizon. An underlying loose, but poorly developed horizon is called a C horizon.
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The A horizon is directly beneath the O horizon and is usually what you'd call topsoil, being heavily enriched by decaying organic material but also depleted of other mineral deposits (such as calcium carbonate). ... The B horizon is below the A (or sometimes E) horizon and is where all of the minerals accumulate.
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