2.2: Why Is World Population Increasing?

Question 1

Natural Increase Rate (NIR)

Answer 1

The percentage by which a population grows in a year

Question 2

Doubling Time

Answer 2

The number of years needed to double a population, assuming a constant rate of natural increase

Question 3

Life Expectancy

Answer 3

The average number of years an individual can be expected to live, given current social, economical, and medical conditions

Question 4

Crude Birth Rate (CBR)

Answer 4

The total number of live births in a year for every 1,000 people alive in the society

Question 5

Crude Death Rate (CDR)

Answer 5

The total number of deaths in a year for every 1,000 people alive in the society

Question 6

Total Fertility Rate

Answer 6

The average number of children a woman will have throughout her childbearing years (15-49)

Question 7

Demographic Transition

Answer 7

A process of change in a society’s population from high crude birth and death rates and low rate of natural increase to a condition of low crude birth and death rates, low rate of natural increase, and higher total population

Question 8

Industrial Revolution

Answer 8

A series of improvements in industrial technology that transformed the process of manufacturing goods

Question 9

Medical Revolution

Answer 9

Medical technology invented in Europe and North America that has diffused to the poorer countries in Latin America, Asia, and Africa. Improved medical practices have eliminated many of the traditional causes of death in poorer countries and enabled more people to live longer and healthier lives

Question 10

Zero Population Growth (ZPG)

Answer 10

A decline in the total fertility rate to the point where the natural increase rate equals zero

Question 11

Demography

Answer 11

The scientific study of population characteristics