Chapter 3 vocab 1

Question 1

demography

Answer 1

study of population characteristics, transitions, and projections

Question 2

infrastructure

Answer 2

“Backbone” of a society, including communication, transportation, and other maintenance structures

Question 3

scale of inquiry

Answer 3

the scale is a geographic area being investigated

Question 4

immigration

Answer 4

movement to a country or region

Question 5

emigration

Answer 5

movement out of a country or region

Question 6

distribution

Answer 6

spread of a particular phenomenon across a given space

Question 7

ecumene

Answer 7

portion of the earth’s surface that is habitable for humans

Question 8

arable land

Answer 8

land that can be used for agriculture

Question 9

urban

Answer 9

pertaining to a city

Question 10

arithmetic density

Answer 10

number of people per area

Question 11

physiological density

Answer 11

number of people per area of farmland

Question 12

agricultural density

Answer 12

number of farmers per area of farmland

Question 13

carrying capacity

Answer 13

maximum number of people a region can reasonably sustain

Question 14

desalination

Answer 14

removal of salt from ocean water to make drinking water

Question 15

overpopulation

Answer 15

occurs when a region exceeds its carrying capacity

Question 16

population pyramids

Answer 16

shows the distribution of age and sexes in a particular year (also called age-sex pyramids)

Question 17

cohort

Answer 17

group of people usually classified by age

Question 18

graying population

Answer 18

a population pyramid top-heavy, showing more older people

Question 19

dependency ratio

Answer 19

measurement in which the number of people unable to work because of age is compared with the number of workers in a society