1. Introduction
Nigeria nation’s population increased faster over time but determining the country’s figure has always bring issues since independence due to some reasons such as fear of domination by other ethnic groups, revenue allocation, religious and politics. However available statistics shows overall people in Nigeria were estimated 178.52 million persons in 2015 from 45.2 million in 1960 which indicates an increase 395 per cent in the last fifty years (NBS, 2015). The overall figures of the nation indicate 2.35 percent of the world’s total figures which invariably shows that a person in every 43 human being on the earth surface is a citizen of Nigeria. The country’s population figure has been described as youthful in which about 44 percent of Nigerians were the age 15 as at 2004 which indicates high dependence ration. The high fertility rate which led to having high number of young persons who are future parents constitutes an unstoppable momentum for growth is built into mainstream of the population. This has a lot of implications on quality of life, resources available for social services including education, health as well as economic growth and employment opportunity.

In response of the challenges posed by Nigeria rapid population, the need for preventive check as postulated by Robert Malthus (1882) arose in order to ensure balance population growth and available resources and this necessitated her participation in international gatherings. According to National Population Policy (2004), Nigeria participates in the Arusha Tanzania, 1984 meeting which was held before world population conference in Mexico. At the Arusha meeting, report shows that population of Nigeria was increasing at a alarming rate compare to the proportion of food production. This observation also repeated at the Mexico1984 World Population gathering. One of the outcomes