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SCI 275

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4 factors that produce changes in population size

  • SCI 275 -

    immigration
    emigration
    death rate
    birth rate

  • SCI 275 -

    Economy: availability of jobs

    Changing climate: Rainfall,especially

    Changes in weather: Hurricanes and flooding

    Technical factors: discovery of birth control pills, or availability.

    changes in Government policy: China's one child policy, tax deductions, child care provisions, and changes in things like family leave.

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