Certified Floodplain Manager (CFM) Practice Exam 2025 – Complete Preparation Guide

The outcome of filtering pollutants among floodplain functions is increased surface water quality. This is because floodplains act as natural filters and can help remove pollutants from the water before it flows into larger bodies of water. The other options are incorrect because

- Decreased groundwater recharge is not a direct outcome of filtering pollutants among floodplain functions. While some floodplains may decrease groundwater recharge due to the specific characteristics of the area, this is not a result of the filtering process.

- Reduced species diversity is also not a direct outcome of filtering pollutants among floodplain functions. While certain species may be impacted by polluted water, the overall function of filtering pollutants can actually improve biodiversity by providing a cleaner habitat for different species.

- Increased soil erosion is not a likely outcome of filtering pollutants among floodplain functions. In fact, floodplains can help prevent soil erosion by absorbing excess water and sediment.

Overall,