Multiple Choice
Why did extensive flooding occur upstream of St. Louis during the 1993 Mississippi River flood?
A) Widespread urbanization in the upper portion of the basin increased runoff to a great degree.
B) Floodwalls protecting St. Louis caused a bottleneck in the river's flow.
C) The St. Louis floodwall failed, flooding St. Louis and the area upstream.
D) An intense thunderstorm dropped several inches of rain on the area in only a few hours.
Correct Answer:
Verified
Correct Answer:
Verified
Q17: Downstream floods typically cover larger areas than
Q18: The objective of _ is to maximize
Q19: The total load of a river is
Q20: What is river base level?<br>A)the lowest level
Q21: Following Hurricane Floyd in 1999, residents in
Q23: The lag time between peak rainfall and
Q24: Urbanization generally increases the lag time between
Q25: The continuity equation pertains to the accommodation
Q26: _ consists of straightening, deepening, widening, clearing,
Q27: The 100-year flood is the flood that