How does the regulation of floodplains to reduce flood damage?

1) it limits what can be built on a floodplain.
2) it forces people to get flood insurance.
3) it relocates animals off the floodplain.
4) it protects plant life on the floodplain from being destroyed.

The correct answer is option 1.

Explanation:

The regulation of floodplains assists in reducing the destruction done by floods as it restricts what can be constructed on a floodplain. Floodplain regulation is done by imparting minimum standards for the development in the floodplain. This restrains the undue development along the designated or the protected floodplains.  

It determines floodplain zoning regions and does not permit any development in such regions. The regulations recommend structural restrictions like the lowest floor elevation of buildings or other compositions and base flood elevation. The prime objective is to restrict the threat and destruction resulting due to floods by developing flood-safe buildings.  

answer; i believe the answer is hydraulic action;