Evan Sewell Wallace, best known by his stage name e-dubble (often stylized E-DUBBLE or shortened to e-dub) (November 1, 1982 - February 13, 2017) was an American rapper from Philadelphia. He was best known for his Freestyle Friday series in which he released a new song each Friday throughout all of 2010, with one final release in 2012.
Parent material is the underlying geological material (generally bedrock or a superficial or drift deposit) in which soil horizons form.arent material is the underlying geological material (generally bedrock or a superficial or drift deposit) in which soil horizons form.
The rock that breaks down into mineral fragments that form a soil is called parent rock. Different parent rocks have different chemical compositions. As a result, soils also differ in composition. Bedrock is the layer of rock beneath soil.In some cases, the bedrock is the parent rock. In these cases, the soil remains above the bedrock that weathered to form the soil.Soil that remains above its parent rock is called residual soil.Few soils are residual soils.any people think that soil is just dirt. To a scientist, soil is a loose mixture of small mineral fragments, organic material, water, and air that can support the growth of vegetation. The Source of Soil Because soils are made from weathered rock fragments, not all soils are the same.