Weathered rock provides the material for soil.
Anywhere from "none" to "lots and lots". Calcareous soil is soil high in calcium (lime) content. it has nothing to do with the percentage of humus, which is decayed organic material.
alluvial soil covers the most part of India.
Organic mater in soil comes primarily from plants - dead leaves, stems, roots, etc. Since deserts do not have a high population of plants, there is little organic material added to the soil.
clay, sand, and silt make up inorganic material in soil
Decomposing plant material.
Broken down Rock
Parent material influences soil formation through the process of weathering and then through the influence of the weathered material on soil processes. It provides the skeleton for the soil's texture through its main structure.
Top soil
soil
topsoil because the topsoil is the soil that is used for farming
The organic level which is the uppermost level of the soil.
This largely depends on the soil and how the soil is tilled by each individual gardener or farmer. Typically the Top Soil will have the most nutrients available.
Connecticut's main features are soil. They have to have good soil to grow thing there, and that is where the Puritan's got most of there good crops. Connecticut's main features are soil. They have to have good soil to grow thing there, and that is where the Puritan's got most of there good crops.
The organic material in soil is humus.
Soil is a heterogeneous material
the layer the contain the richest material is the top soil :)