The shift to farming had several effects on Native American cultures. Selecting all that apply:
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Farming encouraged Native cultures to build more permanent shelters and communities. (True - Agriculture often led to more sedentary lifestyles, which resulted in permanent settlements.)
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The shift to agriculture led to a boost in immunity from diseases. (Partially true - While agriculture can lead to larger populations and thus a better opportunity for immunity to develop over generations, it is not a direct cause of increased immunity from diseases.)
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Agriculture provided a surplus of food, allowing for an increase in the population. (True - A stable food source typically increases population growth and can support larger communities.)
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Farms took up space, which spread communities too thin to be interconnected and caused civilization to wither away. (This statement is more complex; while farming could lead to a dispersal of communities, it did not necessarily cause civilization to wither away in all cases. Many agricultural societies thrived.)
Based on this analysis, the most accurate selections reflecting how the shift to farming affected Native American cultures are 1 and 3.