Human population growth

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4 Terms

1
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age structure

number of individuals of each defined age group

  • can predict population growth

2
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total fertility rate

avg number of live births a woman has in a lifetime

  • 2.3 for zero pop growth

3
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ecological foot prints

amount of productive land needed for survival in a sustainable world

  • avg = 3 hectares

  • sustainable = 2 ha

  • americans = 10 ha

4
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