Which is a glacial feature caused by erosion?

A. Glacial erratics

B. Moraines

C. Striations

D. Terminal moraines

A. Glacial erratics

The correct answer is A. Glacial erratics.

Glacial erratics is a term used to define the pieces of rocks that differ in shape and size from the native rocks, in the area where they rest. These rocks are dragged from their primary position by the glacial ice, very often over distances of hundreds of kilometers.