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…showed last 75 words of 461 total…know when to plant gardens. Also, many years of rainfall would erode soil, while many years of drought made it impossible to grow food without a water resource. Travel was not easy either. If a person was traveling through the middle, northern portion of Africa and a drought occurred, it would be likely that they would die of dehydration because most of the natural water resources are far from the mid-land mass of northern Africa.