The United Nations Population Division projects future population growth. The fo
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Question
The United Nations Population Division projects future population growth. The four projections in Graph A are each based on a different future fertility rate. The medium fertility rate variant assumes that the global fertility rate will drop to replacemement (2.1), the constant fertility variant assumes no change, and the high and low fertility variants assume that the global fertility rate will be 2.6 , and 1.6, respectively. Based on these graphs, please answer the questions below.
Interpretation
1. What are the population projections for each fertility variant in 2050? In 2100? What do you predict the population in 2150 for the constant fertility variant?
2. What is the trend in the numbers in Graph A for each line?
3. How does the information in Graph A relate to that in Graph B? Explain.
Advance your thinking
4. Explain why the UN might have four population projections based on different fertility rates?
5. Why is Africa projected to have such large growth if population projections assume that global fertility rates will be at replacement? Use information from your reading in the book or the Internet to support your conclusion.
GRAPH A Estimated and Projected World Population According to Different Variants Constant fertility variant A High fertility variant . Medium fertility variant . Low fertility variant 201 15 o 10 0 YearExplanation / Answer
Answer 1- year 2050 population projections acording to diffrent fertility veriant-
Constant - 10(in billions)
High - 10-11
Medium- 8
Low - 6-7
Year 2100
Constant - 13
High- 21
Medium- 10
Low - 5-6
Year 2150 ( pridiction in my concern)
Constant - 21
High- 30-35
Medium - 12-14
Low - 7-8
Answer 2 - trends of each line is little diffrent from each other which is follow :
1 . Dark green triangle showes constant graph line which is increasing constantly.
2. Blue triangle showes high rate of fertility and it is increasing rapidly.
3. Brown colour showes the medium fertility which is incresing slowly and stedy.
4. Light green triangles showing low rate of fertility whiwhich are increasing slowly and some times decreasing too.
Answer 3. both the graph are related to each other because both of them showes population growth with which we can compare the growth of uniteunited states with other major regions.
Answer 4. Four diffrent veriant are shown because this is the new reality of world with the change in living people are suffring from fertility rate in them because of stress and heavy work load they are not so much concern about this problem untill they go through it.so its obvious that they have to make 4 veriant according to the neeneed and possibilities.
AnsWer 5. Fertility rate of africa is always huge because of there living and because of rich food present in there surrounding which make them more powerfull than others and they do get whole protines and vitamins they neede from the surrounding natur where as in most of the regions they people use packed food and have a bussy lifestyle.
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