Even though streams that flow through valleys generally move very fast, the stream load is
mostly made of suspended load. Usually, bed load is only found in mountain streams with
a high gradient. Why?
O
A. rocks and boulders are only found in
gullles which are in the mountains
O
B. streams with low gradients usually move
slowly and cannot carry bed load downstream
C. large rocks and boulders just aren't very
common at lower elevations
D. both a and b