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.
Bedrock is the solid layer of rock beneath the soil. Soil is a mixture of rock particles, minerals, decayed organic material, air, and water. The decayed organic material in soil is humus, a dark-colored. substance that forms as plant and animal remains decay. Humus helps create. spaces in soil for air and water that plants must have.