Which of the following is evidence that an area was once covered by a glacier?
a. loess deposits
b. v-shaped valley
c. u-shaped valley
d. alluvial fan

The correct answer is letter B. V-shaped Valley. It is the evidence that an area was once covered by a glacier. Glaciers form in an area where the temperature is so very low and stayed there for a longer time. Glaciers that reached the oceans form icebergs.

Ibelieve the answer is c also i'm in k12 too

Answerstratovolcanoes///near or in the ring of fire;