Chapter 4.2, Problem 3MI

Summary Introduction

To determine:

The definition of term demography, demographic transition, zero population growth and age structure.

Explanation of Solution

Demography: Demography is described as the study of human population. It deals with the size, distribution and the composition of the population in different regions.

Demographic transition: It is a theory that suggests the possible transitions occurring in a population of a country or a geographical region. In this theory, the birth rate increases and death rate decreases significantly.

Zero population Growth: It is referred to a condition, in which number of individuals in a population neither increases nor decreases. In this case, the birth rate or the number of individuals born in a region is equal to the death rate, i.e., number of individuals died.

Age structure: It is a graphical representation of the proportion of individuals of different ages. It gives an idea about the number of individuals in a particular age group and also gives an insight of the sex ration in different age group. Given below is a typical representation of age structure of a population.