What is the primary geomorphic process responsible for the formation of a drumlin?

💡 Solution & Explanation

Drumlins are streamlined, egg-shaped hills formed primarily through glacial deposition beneath moving ice sheets, with their longer axes oriented parallel to the direction of ice movement. Unlike features sculpted by running water or desert winds, drumlins consist of compacted glacial till plastered onto the bedrock as ice advances. They frequently occur in clusters known as drumlin fields, which are common across glaciated regions of North America and Northern Europe.