AP/IB Environmental
1.
Human Population Calculations Practice
Natural Increase Rate of a human population is
A.
number of immigrants per year.
B.
number of immigrants – number of emigrants per year.
C.
crude birth rate  crude death rate
.
10
D.
crude birth rate  crude death rate
.
10
(Total 1 mark)
2.
This is a demographic transition model:
Birth and
death
rates
40
birth rate
30
20
death rate
10
Stage I
Stage II
Stage III
Stage IV
The natural increase rate at the end of Stage II is approximately
A.
1.6
B.
3.5
C.
16
D.
35
(Total 1 mark)
3.
If in a human population of 10 000, there are 200 births per year and 100 deaths per year, the Natural
Increase Rate would be
A.
0.01.
B.
0.1.
C.
1.0.
D.
10.
(Total 1 mark)
1
4.
Calculate the missing values in the table.
Country
Crude birth rate
Crude death rate
Natural increase rate
Uganda
45
Y
2.4
United Kingdom
X
10
0.3
Russia
11
16
Z
X
Y
Z
A.
10.3
42.6
–5
B.
9.7
47.4
–5
C.
13
21
–0.5
D.
13
21
0.5
(Total 1 mark)
5.
If the crude birth rate of a country in a particular year is 16 per 1 000, and the crude death rate is 8 per 1 000,
what is the annual population growth by natural increase?
A.
0.8 %
B.
8.0 %
C.
2.0 %
D.
0.2 %
(Total 1 mark)
6.
A population has a crude birth rate of 28 per thousand and a rate of increase of 1.4 %. What is the crude
death rate per thousand?
A.
14
B.
26.6
C.
42
D.
29.4
(Total 1 mark)
7.
How long would it take a human population with a natural increase rate of 1 % to double?
A.
10 years
B.
50 years
C.
70 years
D.
100 years
(Total 1 mark)
2
8.
A country has a birth rate of 10 per thousand and a death rate of 7 per thousand. Which statement is most
likely to be correct?
A.
The population of this developing country is increasing very rapidly.
B.
The natural increase rate of this developed country is 0.3 %.
C.
The doubling time for this developed country is about 30 years.
D.
This developing country has a natural increase rate of 3.0 %.
(Total 1 mark)
9.
The graph below shows how a country’s population has changed over a period of two hundred years.
What cannot be measured from this type of graph?
20
Population
in millions
10
0
2000
1800
Time
A.
Change in total population over time
B.
Rate of population growth at different times
C.
Birth rate
D.
Natural increase rate
(Total 1 mark)
10.
If the crude birth rate of a country is 27 per thousand per year and the crude death rate is 7 per thousand per
year, what would the natural increase rate be?
A.
35 %
B.
20 %
C.
2%
D.
0.2 %
(Total 1 mark)
3
12.
The table below shows demographic data for the human population of a country in 2004.
Birth rate/1000
Death rate/1000
Number of live
children per female
Mean age of mother
at first live
birth/years
13
16
1.2
29
(a)
(i)
Define the term natural increase rate.
...........................................................................................................................
...........................................................................................................................
(1)
(ii)
Calculate the percentage natural increase rate for the data above.
...........................................................................................................................
...........................................................................................................................
(1)
(b)
(i)
Predict how the population of the country is likely to change over the next 5 years.
...........................................................................................................................
(1)
(ii)
Identify two pieces of data that support your prediction in (b) (i) above.
...........................................................................................................................
...........................................................................................................................
...........................................................................................................................
...........................................................................................................................
(2)
(c)
Outline two reasons why women in developing countries usually have children at a younger age than
those in developed countries.
......................................................................................................................................
......................................................................................................................................
......................................................................................................................................
......................................................................................................................................
(2)
(Total 7 marks)
4
13.
Country
Crude birth rate
/ thousand
Crude death rate
/ thousand
Natural increase
rate
Angola
46
24
X
Portugal
11
Z
0.1
Which row in the table below correctly gives the values of X and Z?
X
Z
A.
22
10.9
B.
2.2
10
C.
70
–10.9
D.
–22
11.1
(Total 1 mark)
ANSWERS:
1C
2A
3C
4C
5A
6A
7C
8B
9C
10 C
11 A
12(a)(ii) -0.3%
13 B
5