Answer:
Very slowly
Step-by-step explanation:
Even it may seem that the glacier is moving rapidly, it moves very slowly. It is a solid block of ice and that ice is making it move, as the pressure on the ice enters the block.
As the ice is melting around the glacier, it helps him slide and move. Glaciers are moving as a response to climate change. The glacier moves the fastest on the points where the ice is thinner and there is no friction. While glacier has enough amount of snow and ice, it will move.