Answer:
True
Step-by-step explanation:
True. The presence of meltwater at the bottom of a glacier can increase its rate of movement, also known as its "flow velocity." When water collects at the base of a glacier, it can act as a lubricant, allowing the glacier to move more easily over the underlying land. This can cause the glacier to flow more quickly and potentially to advance or retreat more rapidly than it otherwise would. The amount of meltwater present at the base of a glacier can vary depending on factors such as the temperature and the amount of snow and ice present, and can have a significant impact on the glacier's movement and overall behavior.