Answer
Capacity and competency are two different aspects of a stream's ability to transport sediments. Capacity refers to the total amount of sediment that a stream can carry, and it is influenced by the stream's discharge and velocity. A stream with a higher discharge and flow velocity has a greater capacity to transport sediments. Competency, on the other hand, refers to the stream's ability to carry the largest-sized particles, such as boulders or cobbles. A stream with higher flow velocity and energy is more competent and can move larger and heavier particles.
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