Question

Amajor actor in the wide range of growth rates in various parts of the world is the differences in their age structures. The age Mructures of populations are often depicted as population pyramids post-reproductive years reproductive years pre-reproductive years male female Age 85+ 80-84 75-79 70-74 65-69 60-64 55-59 50-54 45-49 40-44 35-39 30-34 25-29 20-24 15-19 10-14 5-9 0-4 A B. С D Use the age structure pyramids provided to answer the following questions Whichage structure is stinga declining population! Whichestructure is using a stable population? Whichage structure is suggesting rapid growth in the population Other than birth rate and death rate, what two factors can influence population size Based on the structure of country what is one thing that needs to happen over the next 20 years in order for stabilization to court

Answer 1

1.Bi is suggesting a declining population as in this case the number of people in the post reproductive phase are greater than the number of people in the reproductive and pre reproductive phase.

2. C is suggesting a stable population as all age groups and genders are almost similar in number. So birth and death rate is almost equal.

3. A is suggesting a rapid growth in population as the number of people in the reproductive and pre reproductive age group are way higher than the post reproductive age group suggesting greater birth rate and lesser death rate, leading to net increase in population.

4. Other than birth rate and death rate immigration and emmigration i.e moving of people in and out of a country can affect population size.

5. In order for stabilisation to occur in country A, birth control measures need to be introduced to reduce birth rates and betterment of health care facilities has to be done to reduce death rates and increase post reproductive population