Grade 12 World Issues – Unit 2 – Demographics

Demographic Definitions

Population Pyramids

More Demographics

Theories

1 1 1 1 1

2 2 2 2 2

3 3 3 3 3

4 4 4 4 4

5 5 5 5 5

Africa

The number of births in a country for every thousand

people in the population.

What is Birth Rate?

Immigration Rate subtract

Emigration Rate

What is Net Migration Rate?

The percentage of a country’s population who are under the

age of 15 and over 65 that must be supported by the

independent, working population.

What is Dependency Load?

2.1

What is the Replacement Rate that would

produce a Natural Increase Rate

of zero?

How long it takes a country’s population to

double.

What is

Rule of 70 or

Doubling Time?

These are the two factors within a population that a

Population Pyramid illustrates.

What are

AGE and SEX DISTRIBUTION?

The type of population growth shown in a Population Pyramid

with lots and lots of young people and few old people.

What is

RAPID GROWTH or

RAPID EXPANSION?

The term or name given to groups of ages such as

0-4, 5-9, 10-14, 15-19 and so on…

What are

AGE COHORTS?

The type of Population Pyramid that has a population that is

shrinking due to a low birth rate and a stable death rate.

What is

NEGATIVE or

DECLINING GROWTH?

A reason other than declining births and high death why a Population Pyramid would show a Declining Population.

What is increased emigration?

This desert is 25%

of Africa’s land mass

What is

the Sahara Desert?

54

What is

the NUMBER OF COUNTRIES in Africa?

3,000 people every day

What is

the number of people dying of AIDS daily in Africa?

Between 1500 and 1800, an estimated 8-12 million

Africans became this.

What is

a SLAVE?

This historic settling of Africa established arbitrary borders between African tribes and

societies.

What is

EUROPEAN COLONIALISM?

In 2005 Canada, 7.3 people died

per every 1,000 people

What is

DEATH RATE?

The number of people who permanently leave a

country.

What is

EMIGRATION?

It combines Natural Increase Rate (NIR)

plus Net Migration Rate (NMR).

What is

POPULATION GROWTH RATE?

The average number of children that each woman will

have in her reproductive years.

What is

FERTILITY RATE?

The process that led to a stabilization of

population growth in the last century the more

highly developed countries.

What is

DEMOGRAPHIC TRANSITION?

The human population that could thrive

without harming the earth while sustaining a high standard of living

for all people.

What is

OPTIMUM POPULATION?

The theory that suggests human population would increase

faster than food supply and, as a result, the standard of

living would decrease. However, “negative checks” such as famine, disease and

war would balance out population growth.

What is

MALTHUSIAN THEORY?

He wrote The Population Bomb predicting the world would

experience famines between 1970 and 1985 due to

population growth outstripping resources.

Who is

PAUL EHRILICH?

Maximum number of individuals the

environment can sustain indefinitely.

What is

CARRYING CAPACITY?

Julian Simon supported Cornucopian Theory: A belief that technology will produce

endless resources and unlimited population growth. As such, Simon was a founder of this odd “money-and-green”

idea.

What is

“Free Market Environmentalism”?