Briefly describe ONE piece of evidence used in the excerpt to support the argument made in the excerpt unit 7

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nothing certain is known about what happened, but it seems that the country declined gradually, perhaps due to bad government, or, more likely, due to a series of bad harvests, which resulted in widespread and recurrent famine.

i think the answer is the one about environmental and social health.

hope this

the correct answer is b, "fertility rates are increasing, so populations will grow more quickly in the future."