Final answer:
Coastal wetlands include salt marshes, which are low-lying wetlands inundated by tidal waters. They are heavily vegetated and provide habitat and protection from storms and floods.
Step-by-step explanation:
Coastal wetlands include salt marshes, which are low-lying wetlands that are inundated by tidal waters. These marshes tend to be heavily vegetated and are characterized by low-energy sedimentary environments. They provide important habitat for various species and help protect coastal lands from storms and floods. Salt marshes are an example of a wetland that contains saltwater.