a.Minerals are valuable natural resources being finite and non-renewable. They constitute the vital raw materials for many basic industries and are a major resource for development. ... Since independence, there has been a pronounced growth in the mineral production both in terms of quantity and value.
b.Flowing water picks up soil particles, and carries them along until the flow ebbs and the particles sink to the bottom. ... Anything that reduces the energy of the flow field can cause larger particles to drop below the critical Reynolds number and drop out of the fluid stream (deposition)
c.Afforestation prevents soil erosion because trees grow very large, very strong roots that take hold in soil and prevent it from washing away or being...
