If a flood has a recurrence interval of ten years, it means that ________.
A. the flood must be bigger than any other flood during any given 10-year interval
B. in any given year a similar flood has a 1/10 chance of occurring
C. a similar-sized flood has a greater probability of occurring every tenth year than during any one of the intervening years
D. a similar-sized flood will occur once every ten years
E. None of these choices are correct.
Answer: B
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