Author Question: Which of the following is NOT an example of flood proofing? a. building fish ladders so adult ... (Read 67 times)

brutforce · **on:** Jul 15, 2018

Which of the following is NOT an example of flood proofing?
a. building fish ladders so adult salmon can migrate upstream to spawn
b. building floodwalls of reinforced concrete and continuous piles
c. employing water-resistant building materials in all construction
d. raising structures above the 100-year flood level with artificial fill
e. building artificial levees on top of natural river levees

Question 2

Which of the following statements about the fifty-year flood is true?
a. The fifty-year flood has a 50 chance of happening in a given year.
b. The fifty-year flood has a one-in-fifty chance of happening in any given year.
c. Once a fifty-year flood occurs, the region is safe for 49 years from another fifty-year
flood.
d. The fifty-year flood occurs once every fifty years.
e. The fifty-year flood cannot happen twice in the same year.