According to Carla (2008),
the soil is the tiny loose materials covering the earth. It is formed from
weathering of rocks into small particles of three zones or strata referred to
as the top soil and the horizon of deep soil. The top soil contains high
proportion of decaying remains of plants and animals.
the soil is the tiny loose materials covering the earth. It is formed from
weathering of rocks into small particles of three zones or strata referred to
as the top soil and the horizon of deep soil. The top soil contains high
proportion of decaying remains of plants and animals.
Tarbuk and Lutgens (2004),
asserted that the soils are just a tiny portion of all earth materials, yet are
vital resources, because soils are necessary to the growth of rooted plants.
They are the foundation of the human support system. Despite their basic role
in providing food, fibre and other basic materials, soil are among our most
abused resources. These abuse results in soil erosion and other negative
effects of land degradation.
asserted that the soils are just a tiny portion of all earth materials, yet are
vital resources, because soils are necessary to the growth of rooted plants.
They are the foundation of the human support system. Despite their basic role
in providing food, fibre and other basic materials, soil are among our most
abused resources. These abuse results in soil erosion and other negative
effects of land degradation.
References
Carla, W. (2008): Environmental Geology 5th ed, McGraw-Hill Inc.
USA pp 20-22.
USA pp 20-22.
Turbuk and Lutgens (2004): Earth. An Introduction to
Physical Geography, 7th ed. Prentice-Hall Inc. New Jersey, USA.
Pp22, 63, 75.
Physical Geography, 7th ed. Prentice-Hall Inc. New Jersey, USA.
Pp22, 63, 75.