Which landform is elongated ellipsoidal hillsides?

• A. Moraine
• B. Drumlins
• C. Eskers
• D. Talus

Answer: (B)

Drumlins are elongated, ellipsoidal hills formed by the action of a moving glacier. They’re created when glacial ice reshapes underlying sediment (till) as it flows, producing smooth, streamlined mounds that point in the direction of ice movement. The upstream end is typically blunt and steeper, while the downstream end tapers into a rounded tail. When many drumlins align in a field, they reveal the paleointerpretation of ancient ice flow directions.

This distinguishes drumlins from other glacial landforms. A moraine is a ridge of till deposited at the glacier’s edge, not streamlined hills. An esker is a winding ridge of sorted sands and gravels laid down by subglacial meltwater streams. Talus is a pile of broken rock fragments that accumulates at the base of cliffs due to rockfall.