Geog 100 Chapter 3

Question 1

Age-sex pyramid?

Answer 1

a representation of the population based on its composition according to age and sex.

Question 2

Baby boom?

Answer 2

the increased number of births in the two decades following World War II.

Question 3

Cohort?

Answer 3

a group of individuals who share a common temporal demographic experience.

Question 4

CBR?

Answer 4

Crude birth rate: the ratio of the number of live births in a single year for every thousand people in the population.

Question 5

CDR?

Answer 5

Crude death rate: the number of deaths in a single year for every thousand people in the population.

Question 6

Crude Density (arithmetic density)?

Answer 6

the total number of people divided by the total land area.

Question 7

Demographic transition?

Answer 7

the replacement of high birth and death rates by low birth and death rates.

Question 8

Demography?

Answer 8

the study of the characteristics of human populations.

Question 9

Fertility?

Answer 9

the childbearing performance of individuals, couples, groups or populations.

Question 10

Infant mortality rate?

Answer 10

the annual number of deaths of infants under one year of age compared with the total number of live births for that same year.

Question 11

Life expectancy?

Answer 11

the average number of years an individual can expect to live.

Question 12

Migration?

Answer 12

a long-distance move to a new location.

Question 13

Forced migration?

Answer 13

the movement by an individual against his or her will.

Question 14

Immigration?

Answer 14

a movement in which a person arrives in another country.

Question 15

Voluntary migration?

Answer 15

the movement by an individual based on choice

Question 16

Mobility?

Answer 16

the ability to move, either permanently or temporarily.

Question 17

Natural decrease?

Answer 17

the difference between the CDR and the CBR, which is the deficit of births relative to deaths.

Question 18

Natural increase?

Answer 18

the difference between the CBR and the CDR, which is the surplus of births over deaths.

Question 19

Pull factors?

Answer 19

forces of attraction that influence migrants to move to a particular location.

Question 20

Push factors?

Answer 20

events and conditions that impel an individual to move away from a location.

Question 21

Emigration?

Answer 21

a movement in which a person leaves a country.

Question 22

Environmental refugees?

Answer 22

people who have been physically displaced from their homes and livelihoods by the deterioration of the local environment.