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30 Cards in this Set

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Demography

The study of population numbers, distribution, trends and issues

Census

The process of collecting compiling, and publishing demographic economic and social data about all people living in a particular area

Developed Country

A country with a highly developed economy and infrastructure and high living standards

Developing Country

A country with a less sophisticated economy and lower standard of living than developed countries; may have extensive poverty

Crude Birth Rate

The number of births per 1000 people in a country in a given year

Crude Death Rate

The number of deaths per 1000 people in a country in a given year

Natural Increase

The rate at which population increases or decreases in a year expressed as a percentage of the total population; calculated by subtracting the death rate from the birth rate

Rule of 70

The time it takes a country to double its population, approx 70 divided by the countries growth rate

Net migration rate

The difference between the number of people immigrating to a country and the number of people emigrating

Population growth rate

The rate at which a countries population increases or decreases; calculated by adding natural increase and net migration

Net migration rate

The difference between the number of people immigrating to a country and the number of people emigrating

Population growth rate

The rate at which a countries population increases or decreases; calculated by adding natural increase and net migration

Life expectancy

The average number of years an individual is expected to live

Demographic transition model

A model that shows changes in a populations birth and death rates and growth based on the technological development

Population pyramid

A bar graph that shows male and female populations back to back at age intervals of five years

Dependancy ratio
A

Dependancy ratio

The proportion of the population that is being supported by the working age group (under 15 and over 65)

Population density

The number of people living in a given area; calculated by dividing the population by its area

Nutritional density

A measure of how much nutrition in calories can be produced from a certain area; an area with fertile soil andd adequate temperatures and precipitation will have a higer nutritional density than an area such as Canada's North


Sustainable development

A way to maintain economic growth without damaging the environment

Biosphere

Regions of the earth occupied by living organisms, made up of all the ecozones

Ground water

Water beneath earth's surface in underground streams and other forms

Ozone layer

A thin layer of ozone in the atmosphere 15-30 kilometres above earth; the ozone layer filters the suns ultraviolet (UV) rays

Aquifers

An underground layer of rock, gravel, etc from which water can be drawn for wells and which is a source of springs

Biodiversity

Having a variety of life forms

Desertification

The spread of desert-like conditions in an area, sometimes caused by human activity

Desertification

The spread of desert-like conditions in an area, sometimes caused by human activity

Ecotourism

Tourism to threatened area that tries to be low-impacts and small-scale

Globalization

A process by which the regions and countries of the world are becoming economically and culturally interconnected

Stewardship

Careful management of resources to ensure that they are sustainable