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What are the four factors that produce changes in population size?

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  1. immigration
    emigration
    births
    deaths

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    Ms. Sue
  2. it was a trick question, there are five factors.

    immigration
    emigration
    births
    deaths
    and marriges

    (due to matramony knowledge, look on matramoneos-popultaion, a website)

    Your Very Welcome x

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