Which of the following best describes the movement of a glacier?

Question

Quizplus · Accepted Answer

Glaciers typically move slowly, on the order of a few tens of meters per year, although faster movement, called surging, can occur in alpine glaciers. This movement is caused by the weight of the ice on the lower parts of the glacier and the deformation of the ice itself under pressure. Glaciers can move up or down slopes depending on the direction of the snow accumulation and the slope of the underlying land. Glaciers can also move during both warming and cooling periods, although their extent may change.

Which of the Following Best Describes the Movement of a Glacier