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History 17 Online
OpenStudy (anonymous):

Who was at risk of early death due to the contamination of water and animal-borne diseases? A. nomads searching for mammoth B. early farmers who cultivated crops and domesticated animals C. hunter-gatherers searching for berries D. Homo erectus who hunted animals with a hand axe

OpenStudy (anonymous):

B crops got infected with pest causing easy transfer of diseases and animals got ticks which also spread diseases.

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