1. How fast do glaciers normally move? How fast can they move during a surge? 2. Explain how the balance between ablation and accumulation controls advances and retreats. 3. How can a glacier...

1. How fast do glaciers normally move? How fast can they move during a surge?

2. Explain how the balance between ablation and accumulation controls advances and retreats.

3. How can a glacier continue to flow toward its toe even though its toe is retreating?