: the soil layer lying beneath the B horizon and consisting essentially of more or less weathered parent rock.

: a subsurface soil layer that is immediately beneath the A horizon from which it obtains organic matter chiefly by illuviation and is usually distinguished by less weathering.

Alternative Title: soil horizon.

The B horizon of a soil; the zone where iron oxides and clay minerals accumulate. The A horizon of a soil; most fertile layer of soil where humus, plant roots, and living organisms are found.

surface litter) is termed the A horizon. This is a weathered layer that contains an accumulation of humus (decomposed, dark-coloured, carbon-rich matter) and microbial biomass that is mixed with small-grained minerals to form aggregate structures.

A soil horizon makes up a distinct layer of soil. The horizon runs roughly parallel to the soil surface and has different properties and characteristics than the adjacent layers above and below. The soil profile is a vertical section of the soil that depicts all of its horizons.

topsoil

Soil is made up of distinct layers, called horizons. These characteristics play a very important role in what the soil is used for and why it is important. O HORIZON- This is the top layer of soil that is made up of living and decomposed materials like leaves, plants, and bugs.

In the A horizon, climate and topography had the greatest influence on soil pH. In the B and C horizons, the key factor that affected soil pH was parent material. Topography and climate also had great importance in the B horizon.

The A horizon is the layer also called the topsoil. It is usually distinguished from the other horizons by its colour, texture, and structure and is rich in humus and under composed organic matter. There is an abundance of plant root and living organisms. The colour of the top soil is determined by its drainage.

The horizon (from Greek orizein, to limit) is the line that separates earth from sky. But at many places the true horizon cannot be seen as there are trees, buildings, mountains and so forth. The line is then called visible horizon.

The horizon is the apparent line that separates earth from sky, the line that divides all viewing directions based on whether it intersects the Earth’s surface or not. The true horizon is actually a theoretical line, which can only be observed when it lies on the sea surface.

The definition of horizon is the area where the earth and sky look as if they come together or how far your interests and knowledge stretch. An example of horizon is the area where the sky and earth appear to merge into one sea of blue. An example of horizon is a person who has never travelled outside of his own town.

Answer: At the coast the horizon facing the ocean is unobstructed, so a larger part of the sky is visible than inland, where trees, buildings, etc., block the view of the horizon. At or near the horizon the sky appears lighter blue than at the zenith, or even whitish.

Horizon sentence example

1. The sun peeked over the desert horizon to the east.
2. The sun lingered on the horizon , as if waiting for the closing clouds.
3. Cassie glanced at Bordeaux, who was watching the horizon apprehensively.

(1) The mountains rolled away to a distant horizon. (2) Rain clouds were looming on the horizon. (3) They vanished into the haze near the horizon. (4) The sun appeared on the horizon.