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.
R horizons are the layers of partially weathered bedrock at the base of the soil profile. Unlike the above layers, R horizons are composed largely of consolidated masses of hard rock that cannot be excavated by hand.Soils formed in situ will exhibit strong similarities to this bedrock layer. horizons are the layers of partially weathered bedrock at the base of the soil profile. Unlike the above layers, R horizons are composed largely of consolidated masses of hard rock that cannot be excavated by hand.