Wetlands play a crucial role in flood control by acting as natural sponges that absorb and store excess water during heavy rainfall or flooding events. The vegetation in wetlands helps to slow down the flow of water, reducing the speed and intensity of flooding. Additionally, wetlands can help to prevent erosion and filter out pollutants, improving water quality and reducing the likelihood of flooding. Overall, wetlands serve as important natural infrastructure that helps to mitigate the impacts of floods and protect surrounding areas.