only do these three questions1.What are the key issues (environmental, resource, social, and/or governmental) that areinfluencing the population patterns for China and Japan? Would a demographer in 1975 havebeen able to make accurate predictions for 2016? (8 points)2. What environmental, resource, and public policies are influencing the population pyramidpatterns for Kenya and the United States? (8 points)3. Discuss the data inTable 3. Energy Use and Population(from the worksheet).How doesthe data presented in the table suggest that the problem of over-population involves morethan a simple increase in the number of people? What else, besides the size of the populationshould be considered when discussing resource use? How can the factors and changes notedbe expected to affect malnutrition and hunger? (9 points)https://www.youtube.com/watch?v=-1eHfNYgOP4 that doc talk about
NuFS 139 GELO 3: Interpreting Population Pyramids Worksheet
Population Pyramids
Study the pyramids below, for countries used in the following
problems and/or discussed in the
video World in the Balance. What might you guess about each
country’s population over time
from the shape of its pyramid?
Problem 1:
a. Examine the population pyramids of the two most populous
countries in the world, China
and India. From the shape of the population pyramids, predict
which country is growing
faster and explain why. To check your hypothesis, see the
population projection for 2040
for these countries on page 4.
b. Study the table below and the corresponding country’s
pyramid. Why is the percentage of
individuals under the age of 15 a good indicator of future
population growth?
Table 1. Percent of Population aged 0-14 by
country
1960
2015
China
40%
17%
India
40%
29%
Japan
30%
13%
Kenya
46%
42%
Kuwait
36%
22%
United States
315
19%
NuFS 139: GELO 3 Interpreting Population Pyramids
2
Problem 2:
For Kenya, the percentage of women of childbearing age will
increase between 2000 and 2025.
The values are shown below.
48% of women were of child-bearing age in 2000
58% of women were of child-bearing age in 2025
How will this change impact future population growth?
Problem 3:
The adult (or old age) dependency ratio is the ratio of
seniors (people older than 64) to the
working-age population (people 15-64). This ratio is used to
measure the burden on those in the
labor force (ages 15-64).
Table 2. US population by age in 2015 and 2040
Age
2015
2040
0-14
19%
17%
15-64
66%
61%
65+
15%
22%
Total population
321 million
380 million
a. What trend do you notice in adult dependency between 2015
and 2040? How could you
explain this change?
b. What will be the impact of this trend on government
policies? Why is it important for a
country to have the majority of its population in the 15 – 64
age group?
NuFS 139: GELO 3 Interpreting Population Pyramids
3
Problem 4:
The population pyramid of Kuwait, an oil-rich country in the
Middle East, has an unusual shape.
a. Describe the age- and sex-structure of the population of
Kuwait.
b. Give a likely explanation for the unusual shape of this
population pyramid.
c. Is the Kuwaiti population growing, stable or decreasing?
Problem 5:
Resource use. Is it the size of the population or how many
resources the people consume that
matters? The chart below shows current and projected energy
use in quadrillion BTUs by
country or region, and population for 2016 and projected
population for 2040.
Table 3. Energy Use and Populations
2016
Energy Use
Population
(BTUs x1015)
(millions)
US
98.7
323
China
134.1
1,373
India
29.1
1,266
Japan
20.9
126
Africa
23.8
1,218
Projections for 2040
Energy Use
Population
(BTUs x1015)
(millions)
105.7
380
190.1
1,364
62.3
1,571
21.5
114
44
2,063
a. Consider the projections for energy use and population
projections in 2040. What can you
say about population growth and energy needs? What factors
must one consider besides
population?
NuFS 139: GELO 3 Interpreting Population Pyramids
4
GELO 3: Apply a scientific approach to answer questions about
the earth and environment
Interpreting Population Pyramids (25 points)
From class lecture, the GELO 3 worksheet activity, the video
World in the Balance, and
additional resources as needed, such as the CIA Factbook
https://www.census.gov/programs-surveys/international-programs/about/idb.html
or the US
Census Bureau International Database
Please answer the following questions:
1. What are the key issues (environmental, resource, social,
and/or governmental) that are
influencing the population patterns for China and Japan?
Would a demographer in 1975 have
been able to make accurate predictions for 2016? (8 points)
2. What environmental, resource, and public policies are
influencing the population pyramid
patterns for Kenya and the United States? (8 points)
3. Discuss the data in Table 3. Energy Use and Population
(from the worksheet). How does
the data presented in the table suggest that the problem of
over-population involves more
than a simple increase in the number of people? What else,
besides the size of the population
should be considered when discussing resource use? How can
the factors and changes noted
be expected to affect malnutrition and hunger? (9 points)
NUFS 139 Fall 2016
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