Abstract: Soil offers the medium for root growth, and plants rely on the soil for all other nutrients and water, except for sources such as carbon, hydrogen, oxygen, and nitrogen. Soils grow through the disintegration of rocks and minerals, through the biotic activities of microbes and wildlife. The role of soil-biodiversity is well accepted in preserving fertility and the inter-dependence of physical and chemical activity. Biodiversity is the term that used to refer different living organisms (microorganisms, plants, animals, humans) from variable sources on earth which includes inter alia, land-dwelling, aquatic ecosystems, diversity within and between species of ecosystems. Biodiversity is very important for the establishment of mammoth ecological benefits that significantly promote the wellbeing of humans. Biodiversity is encompassed of different levels beginning with genes to individual genus, from species to communities of creatures and ultimately to whole ecosystems. Biodiversity of soil encompasses several kinds of organisms namely “bacteria, fungi, protozoa, nematodes, enchytraeids, earthworms, mites and springtails”. The organisms can be distinguished depending on their preferred living environment such as aboveground and belowground. The soil’s biological activity is “largely concentrated in topsoil”.