i JOURNAL OF APPLIED SCIENCES AND DEVELOPMENT (An international academic research journal of applied sciences and development) ISSN (Print): 4121-8241, (Online): 2536-6939 Volume 8, Number 1, April, 2017 Journal of Applied Sciences and Development Website: jasdevr.org c/o Dr. O.C. Eneh, University of Nigeria, Nsukka Email: onyenekenwa.eneh@unn.edu.ng Mobile: +234-803-338-7472