What is this landform?

This landform is formed by

Glaciers are masses of ice that move slowly on land. Which of these features was most likely formed by a glacier?

A triangular landform where a river empties into another body of water.

A deep gorge in the surface of Earth formed by the erosion of moving water and sediment.

Hills formed by wind blowing, moving and depositing sand.

The build up of land by the settlement of sediments and soil in a new location.

The movement of sediment down a fast-moving river.