population Flashcards

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1
Q

Death Rate

A

the ratio of deaths to the population per thousand per year

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2
Q

Birth rate

A

the number of births to the population per thousand per year

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3
Q

life expectancy

A

the average period that a person will live

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4
Q

exponential growth

A

when the population is getting bigger than the size

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5
Q

infant mortality

A

deaths of children under the age of 1

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6
Q

baby boom

A

a rapid increase in birth rate

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7
Q

population density

A

how crowded an area is . population/area

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8
Q

population growth rate

A

the increase of population

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9
Q

what are three world locations with high population densities

A

west america, River Nile, east China

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10
Q

what are three world locations with low population densities

A

Sahara desert , Amazon Rainforest , Greenlamd

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11
Q

how does climate influence population density

A

Positive: Mild enough rain Negative: Too hot, Too cold Too dry

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12
Q

How does relief influence population density

A

Positive : flat or gently sloping land Negative: Mountains or steep land

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13
Q

how does access influence population density

A

Positive : coastal area , good transport Negative : inland no communications

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14
Q

How does vegetation influence population density

A

Positive: open grassland Negative: Dense forest , desert

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15
Q

how does economy influence population density

A

Positive: Plenty of industry and jobs Negative : Lack of industry and jobs

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16
Q

How does resources influence population density

A

Positive: Coal minerals timber Negative : Few or natural resources

17
Q

How does soils influence population density

A

Positive : Deep fertile soil Negative : Thin infertile soils

18
Q

What is a population pyramid

A

A pyramid to show distribution of various age g`roups and genders

19
Q

What shape represents a high birth rate

A

pyramid

20
Q

What shape represents a high death rate

A

pyramid

21
Q

what shape represents a high life expectancy

A

rectangle

22
Q

what shape represents a low life expectancy

A

pyramid

23
Q

what is an example of a country in stage 5 of the DTM

A

Japan

24
Q

What are positive effect of migration

A
  • Do jobs locals don’t want to do
  • Work overtime and any time
  • might bring expertise in lines of work
  • help local businesses make profit through low wage demands
  • Local culture enriched
25
Q

What are some negative effects of migration

A
  • fewer job opportunities for local people
  • racial tension problems
  • might not learn language
  • wage levels are possibly forced down
  • overcrowding
26
Q

What country is at stage one of the DTM

A

Rainforest

27
Q

what country is at stage two of the DTM

A

Ethopia

28
Q

What country is at stage three of the DTM

A

India

29
Q

What country is at stage four of the DTM

A

UK