Question

match the valley shown above with the primary force that shaped it.
a
b
wind
glacier

Explanation:

Valley A has a more rounded - V shape typical of a valley formed by fluvial (river) action rather than wind or glacier. Valley B has a U - shaped cross - section which is characteristic of a glacial valley. Glaciers carve out U - shaped valleys as they move and erode the landscape.

Answer:

A. Wind
B. Glacier