Environmental

In Indiana, a 100-year floodplain is defined as land that has a:

A1% annual chance of flooding in any given year✓ Correct
B100% chance of flooding every century
CFlooding event occurring exactly every 100 years
D10% annual chance of flooding

Explanation

A 100-year floodplain (or base flood) is land that has a 1% annual chance of flooding in any given year. FEMA maps these areas, and lenders typically require flood insurance for properties within them.

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