Tick thecorrect answer.(i)Which does the term population distributionrefer to? (a) How population in a specified area changes over time. (b) The number of people who die in relation to the number of people born in a specified area. (c) The way in which people are spread across a given area. (ii)Which are three main factors that cause population change? (a) Births, deaths and marriage (b) Births, deaths and migration (c) Births, deaths and life expectancy (iii)In 1999, the world population reached (a) 1 billion (b) 3 billion (c) 6 billion (iv)What is a population pyramid? (a) A graphical presentation of the age, sex composition of a population. (b) When the population density of an area is so high that people live in tall buildings. (c) Pattern of population distribution in large urban areas.