Final answer:
Significant erosional events of the last glaciation in Canada include the formation of drumlins and moraines, as well as the carving of U-shaped valleys by glaciers.
Step-by-step explanation:
The last glaciation had a profound impact on Canada's landscape, leading to significant erosional and depositional features. Some notable erosional events from the last glaciation include the formation of drumlins and moraines, which are both depositional landforms. Drumlins are elongated hills formed as glaciers reshape the underlying till or ground moraine. Moraines consist of till deposited by a glacier, typically at the edges or terminal end. Another important feature is the creation of U-shaped valleys, carved as glaciers eroded the landscape. These valleys are distinct from the V-shaped valleys formed by rivers. Also, the till deposited by glaciers, which consists of unsorted material ranging from clay to boulders, is a direct result of glacial activity.