Soil Science focuses on the study of the chemical, physical, biological, and mineralogical composition of soils as it relates to plant growth. It is a multi-disciplinary subject combining aspects of physics, chemistry, biology, pedology (the science of natural soils) and geomorphology (the study of the physical features of the Earth’s surface). Soil Science encompasses how soil forms, its role in the environment, land conservation and rehabilitation issues. It is a key factor in food production and is at the forefront of environmental and natural resource issues particularly land use, soil contamination, ground water quality and waste disposal. Soil scientists conduct soil surveys, classify and map soils. They also provide information and recommendations to farmers regarding the best use of land and plants to avoid or correct problems, such as erosion. Others also consult with engineers and other professionals working on construction projects about the effects of, and solutions to, soil problems. Others also consult with engineers and other professionals working on construction projects to solve soil problems’.