Effect of Open cast Quarrying Technique on Vegetation Cover and the Environment in South –Eastern, Nigeria. American Scientific Research Journal for Engineering, Technology and Sciences (ASRJETS), 21(1), 227-240. Akanwa, A.O., Okeke, F.I., Nnodu, V.C., & Iortyom, E.T. (2017a). Quarrying and its Effect on Vegetation Cover …Web