Ch. 9 Key Terms

Question 1

Demography

Answer 1

the study of populations

Question 2

Age structure

Answer 2

the distribution of ages in a specific population at a certain time

Question 3

Survivorship

Answer 3

is the percentage of members of a group that are likely to survive to any given age

Question 4

Fertility rate

Answer 4

the average number of children a woman gives birth to in her lifetime

Question 5

Migration

Answer 5

The movement of individuals from one area to another

Question 6

Life expectancy

Answer 6

The average number of years members of a population are likely to live

Question 7

Demographic transistion

Answer 7

a model that de-scribes how economic and social changes affect population growth rates

Question 8

Infrastructure

Answer 8

is the basic facilities and services that support a community, such as public water supplies, sewer lines, power plants, roads, schools, and hospitals.

Question 9

Arable land

Answer 9

land that can be used to grow crops

Question 10

Urbanization

Answer 10

the movement of people from rural areas to cities

Question 11

Least developed countries

Answer 11

These countries show few signs of development and in some cases have increasing death rates while birth rates remain high