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Demography
The study of population numbers, distribution, trends and issues
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Population Pyramids
Graphs that compare the percentage of males and females in a given population by their age ranges
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Immagrate
To move permanentely to a country other than ones native country
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emigrate
to leave your country of origin to live permanentely in abother country
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Birth rate
number of births per 1000 people
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death rate
number of death per 1000 people
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natural increase rate:
difference between birth rate and death rate in a country
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immigration rate
number of new Canadians who have immigrated here from another country per 1000 people of Canada's population
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emigration rate:
number of people per 1000 population in one year who emigrate
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net migration rate
difference between people immingrating to a country and people emigrating from the same country
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Population growth rate
measurement that combines both natural increase and net migration to calculate the overall growth of a countrys population
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doubling tim(demographics)
how long it would take for a country's population to double at the countrys current rate of population growht
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Rule of 70
in demographics, process whereby you divide 70 by the population growth rate to estimate how many years it will take for the countrys population to double
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dependency load
proprtion of the population that is not in the workforce; total number of people 14 and under and 65 and over.
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How is the population growth calculated formaly
(Births-deaths)+(immigrats-emmagrants)=population growth
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How do you calculate population density?
population density= population/area(square km)
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On a population graphs females are true of:
Being on the right hand side and being coloured pink
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men are true of
being on the left hand side and being blue
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Soil
surface layer of earth composed of mineral and organic minerals, air and water
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soil profile
different horizons(layers) in the soil and the rock layer(bedrock) below the soil. Each horizon has different physical , biological, abd chemical characteristics
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humus
dark, upper layer of soil made up of partially decayed plant material
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leaching
removing mminerals from soil by adding water as it moves downward throguh the soil, leaching occurs in wet climate
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transition zones
area where the characteristics of one region gradually change into those of another
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Permafrost
permanently frozen ground that does not completely thaw in the summer
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Coniferous trees
trees with cones and often needle like trees; evergreen
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deciduous trees
broad leaved trees that shed their leaves annually in the fall
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mized forest
vegetation region that contains both coniferous and deciduos tree types. It is a transition zone between the deciduous forest and the boreal forest
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ecozone
a distinct ecological region determined on the basis of physical, bioligical and human factors
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How many land ecozones does Canada have?
15
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What ecozone do we live in
Mixedwood Plains
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When was the first map of ecozones published?
1986(recent)
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Why would they not want to have too many or to few?
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gross domestic product
total value of the goods and services produced within a country per person, excluding transactions with other countries
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Where does the majority of the GDP come from
our area
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recession
loss of jobs+ less money spent because of bad economy
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What are the winds that influence us in summer, winter?
- winter= jet stream pulls down cool arctic air
- summer= jet stream pulls up warm gulf air
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What are the two currents that collide to make fog?
Cold Labrador current and Warm gulf stream
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mt, mp,ma, ct,cp,ca
- maritme= wet(formed over water)
- continental= dry(formed over land)
- Ploar=formed between 55N and 66N
- Artic= very cold, formed over arctic
- Tropic, hotr formed near tropics
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