AP Human Geography

Answer - B - The name for the seasonal migration of livestock between mountains and lowland pastures is transhumance.

Key Takeaway: Transhumance refers to the seasonal transport of people and their livestock over distances, typically from higher pastures (summer) to lower valleys (winter). Herders usually have permanent homes in the valley, while herds travel with only the necessary people to tend the flock. Transhumance still occurs in much of the world, often in pastoralist societies, which are highly dependent upon the herds for goods like butter, cheese, milk, and yogurt.