Respuesta :
Option C. Equilibrium line, The line dividing the ablation zone from the accumulation zone is known as the equilibrium line; it is the contour where the amount of fresh snow formed by accumulation equals the amount of ice lost through ablation.
Zoned glaciers. The equilibrium line separates the accumulation and ablation zones. The limit at which the equilibrium between the new glacier material added and the old glacial material lost exists. The seasons cause changes in this equilibrium line. Accumulation is at its maximum in the winter when more snow and ice are added. It is the area of the glacier that is expanding in size and depth as it builds up or accumulates. The ablation zone is the second zone. The glacier is actually losing mass here. More snow and ice fall in an accumulation zone. Less snow and ice means an ablation zone.
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