What is the recurrence interval that is considered acceptable by insurers for development on flood plains?
A) 10 years
B) 50 years
C) 100 years
D) 500 years
Answer: C
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There is very little that a person can do to help control the spread of exotic species.
Answer the following statement true (T) or false (F)
About one-third of the annual surface runoff is ____, which we can generally count on as a source of freshwater from year to year.
A. reliable surface runoff B. transpiration C. embedded water D. virtual water E. artesian runoff
Tide waves have ________.
A. crests at the high-water level and troughs at the low-water level B. speeds that are constant C. periods of 24 hours and 50 minutes or 12 hours and 25 minutes D. crests at the high-water level and troughs at the low-water level, periods of 24 hours and 50 minutes or 12 hours and 25 minutes, and speeds that are constant E. crests at the high-water level and troughs at the low-water level and periods of 24 hours and 50 minutes or 12 hours and 25 minutes
A population of similar individuals that in nature interbreed and produce fertile offspring:a
genus b. species c. kingdom d. class e. order