Geotechnical engineering is a involved with any material that’s at or close to the surface of the Earth. These are naturally occurring materials and termed as soil petroleum equipment distributors and rocks. Engineer defines soil as any loose materials which is agglomerate and natural thus sediment formed above bed rock. Soil is a material that may simply be damaged into its constituent. Rock however is a firm materials where cohesive forces and constituents are held collectively. There’s a wonderful line between rock and soil as engineer defines so it may be a very tender rock and even a hard soil. Nicely other definitions about rock and soil is completely different as a geologist defines anything occurring within the Earth as rock regardless of of the minerals bound together and soil to him is disintegrated and decomposed rocks discovered at the upper most part of the Earth. Identical method pedology (examine of soil) and to agronomist soil is the upper most layer that has to do with rising plants.