Test students' understanding of wetland functions: how wetlands filter pollutants and sediments, cycle nutrients and uptake excess nitrogen/phosphorus, provide varied habitats that support plant and animal biodiversity, and absorb, slow, and store floodwaters to reduce downstream flood risk; include identification of wetland types (marsh, swamp, bog), examples of indicator species, simple diagrams or explanations of processes, and discussion of human impacts and basic restoration/management strategies.