Population Pyramids Flashcards

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1
Q

Population

A

Refers to all the people living in a particular country area or region

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2
Q

Demographers

A

People who study human population

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3
Q

What do demographers research?

A
  • geographical distribution of people
  • birth and death rates
  • ages and sex distribution
  • life expectancy
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4
Q

What do demographers use to analyse population?

A

Population pyramids

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5
Q

What do population pyramids show? (trends)

A
  • trends of the past
  • examine current population characteristics
  • predict future population growth
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6
Q

What does the vertical axis represent on a population pyramid?

A

Age group of the population

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7
Q

What does the horizontal axis represent on a population pyramid?

A

Population number

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8
Q

The horizontal axis is split into..

A
  • males on the left
  • females of the right
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9
Q

Cohort

A

Describes each age grouping of five years distributed on the vertical axis of a population pyramid

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10
Q

THREE improvements that lead to longer life expectancy in developing countries

A

Improvements in:
- food supply
- medicine
- sanitation

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11
Q

What 3 categories is population divided into

A
  • pre-productive
  • reproductive
  • post-productive
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12
Q

Pre-productive

A

children who are too young to reproduce
(under the age of 15)

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13
Q

Reproductive

A

Men and women who are biologically able to reproduce
(ages 15-45)

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14
Q

Post-productive

A

People who are too old to reproduce
(over the age of 45)

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15
Q

A ‘dependent’ person is..

A

someone who likely cannot take care of themselves
(under 14 & over 65)

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16
Q

An ‘independent’ person is..

A

someone who is able to take care if themselves
(between 15-64)