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soem uknown factors that make it hard to predict the future size of human population are::::::

-disease ( ex: who knows when another h1n1 outbreak will occur!)

-war ( who knows how the wars and future wars will affect population)

-natural disater ( another earthquake, hurricane, tsumami,ect.)

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14y ago
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10y ago

Density independent factors

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Q: What unknown factors might make it hard to predict the future size of the human population of a country?
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