Question

define A-horizon , B-horizon and C-horizon?

Answer 1

A HORIZON- the top layer of a soil profile, usually dark-coloured and containing humus and from which soluble salts may have been leached

B HORIZON-the layer of a soil profile immediately below the A horizon, containing deposits of leached material and clay deposits

C horizon -the layer of a soil profile immediately below the B horizon and above the bedrock, composed of weathered rock little and liitle humus.


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Answer 2

A-Horizon=A soil horizon is a layer parallel to the soil surface, whose physical characteristics differ from the layers above and beneath. Each soil type usually has three or four horizons. Horizons are defined in most cases by obvious physical features, chiefly colour and texture.

B-horizon=are commonly referred to as the subsoil. They are a zone of accumulation where rain water percolating through the soil has leached material from above and it has precipitated within the B horizons or the material may have weathered in place. ... The A and B horizons together are called the soil solum.

C-Horizon=. the layer of a soil profile immediately below the B horizon and above the bedrock, composed of weathered rock little affected by soil-forming processes. C horizon in Science. C horizon. In ABC soil, the lowermost zone, consisting mainly of unconsolidated, weathered rock fragments