GeoScience Videos Quiz for Streamflow Which of the following statements is the m

Question

GeoScience Videos Quiz for Streamflow Which of the following statements is the most accurate summary of stream flow characteristics? a) The largest particles are found in the low gradient part of the stream channel and the 1. b) The largest particles are found in the low gradient part of the stream channel and the c) The largest particles are found in the high gradient part of the stream channel and the d) The largest particles are found in the high gradient part of the stream channel and the greatest velocities are recorded in the high gradient part of the channel. greatest velocities are recorded in the low gradient part of the channel. greatest velocities are recorded in the low gradient part of the channel. greatest velocities are recorded in the high gradient part of the channel. Most people can walk faster than the average flow velocity of most streams. 2. a) True b) False 3. Which statement is MOST accurate? a) b) c) d) Stream velocity increases downstream and stream gradient decreases. Stream velocity decreases downstream and stream discharge increases. Stream channel width increases downstream and discharge decreases. Streams carry larger sediment as water travels downstream and stream velocity increases 4. Which material requires the lowest velocity to be eroded from the bed of a stream channel? b) Gravel b) Sand c) Clay 5. Sediment load represents the size of particles transported in a stream. a) True b) False 6. In two or three sentences, explain why the sediment load of the Mississippi River would vary during the year and predict when the greatest amount of sediment would be deposited in the Mississippi delta.

Explanation / Answer

1. c) The largest particles are found in the high gradient part of the stream channel and the greatest velocities are recorded in the low gradient part of the channel.

2. a) True

3. a) Stream velocity increases downstream and stream gradient decreases.

4. c) Clay

5. b) False

6. Discharge along the Mississippi varies consistently with season. The highest discharge occurs in spring and the lowest in fall. Sediment load increases with greater discharge and will therefore higher in spring.

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