Final answer:
As water velocity in a stream increases, turbulence b. increases, resulting in an increase in the water's ability to erode and transport sediment within a channel.
Step-by-step explanation:
As water velocity in a stream increases, turbulence increases, resulting in an b. increase in the water's ability to erode and transport sediment within a channel.
The increased turbulence disrupts the flow of water and causes the sediment particles to be lifted from the channel bed, increasing the erosion and transport capacity. Faster water velocities also provide more energy for sediment particles to be transported downstream.