Which numbered feature(s)on this photograph are consistent with the presence of glaciers sometime in the past?
A)1,an arête
B)2,U-shaped valley
C)3,tarn
D)all of these

Question

Which numbered feature(s)on this photograph are consistent with the presence of glaciers sometime in the past? 
A)1,an arête 
B)2,U-shaped valley 
C)3,tarn 
D)all of these

Quizplus · Accepted Answer

An arête (1) is a sharp ridge formed by the meeting of two glaciers, a U-shaped valley (2) is characteristic of glaciated terrain and results from erosion by a glacier, and a tarn (3) is a small lake formed in a cirque or glacial amphitheater. All three features are consistent with the presence of glaciers in the past.

Which Numbered Feature(s)on This Photograph Are Consistent with the Presence