Explain: What happens to the velocity of a stream as the size of the sediment increases?

Also, as stream depth increases, the hydraulic radius increases thereby making the stream more free flowing. Both of these factors lead to an increase in stream velocity. The increased velocity and the increased cross-sectional area mean that discharge increases.

the answer is 12 as i may remember

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the answer is c. the lower legs are levers, and the knees are fulcrums. the ankles hold the loads.