Glaciers will retreat when the amount of accumulation
A)is less than the amount of ablation each year.
B)exceeds the amount of ablation each year.
C)is equal to the amount of ablation.

Question

Quizplus · Accepted Answer

Glaciers will retreat when the amount of accumulation is less than the amount of ablation each year. This means that the amount of snow and ice that is deposited on the glacier (accumulation) is not enough to offset the amount that is lost due to melting and sublimation (ablation). As a result, the glacier shrinks and retreats.

Glaciers Will Retreat When the Amount of Accumulation