by the topsoil
yes they r brothers
Admiral Hyman G. Rickover
The 3 natural resources in US r water, air, and soil i think.
· Anchors Away - The official song of the U.S. Navy
Redback Spider is indigenous to Australia. It is a venomous spider.
The A horizon is the top layer of soil, where most organic matter accumulates and plant roots grow. The R horizon is a layer of partially weathered bedrock underneath the soil layers. The A horizon develops from the weathering of the R horizon over time.
The vertical layers of soil are called soil horizons. These horizons are classified based on their composition, texture, color, and other characteristics, and they include the O horizon (organic matter), A horizon (topsoil), B horizon (subsoil), C horizon (parent material), and sometimes the R horizon (bedrock).
The C horizon is the unconsolidated parent material from which the R horizon (bedrock) forms over time. The R horizon is a consolidated layer of rock that lies beneath the C horizon. Both horizons are part of the soil profile, with the R horizon being the deepest layer.
A horizon composed of unweathered bedrock is called the R horizon. This horizon is commonly found in areas where there is very little to no weathering, or soil development. The R horizon is essentially the underlying bedrock that lies beneath the soil layers.
There are typically five soil horizons: O (organic), A (topsoil), E (eluviated), B (subsoil), and C (parent material). Each horizon has unique characteristics and plays a key role in soil composition and function.
R bedrock
The horizons of a soil profile are O horizon (organic matter), A horizon (topsoil with organic material), E horizon (zone of leaching), B horizon (subsoil with accumulation of minerals), C horizon (weathered parent material), and R horizon (bedrock).
Each layer of soil is called a horizon. Soil horizons are differentiated based on their composition, color, texture, structure, and other characteristics. They are designated with letters like O, A, E, B, C, and R, with each letter representing a specific layer.
The correct order of soil horizons, from top to bottom, is O horizon, A horizon, E horizon, B horizon, C horizon, and R horizon. It is important to note that not all soils have all these horizons, as they can vary depending on the specific conditions of the soil.
The six soil layers in order are topsoil, subsoil, parent material, bedrock, C horizon, and R horizon.
The C and R horizon
The soil horizon that has solid rock is called the R horizon, also known as the bedrock. This layer is made up of unweathered parent material and is located beneath all other soil horizons.