Question

Salt marshes, such as the one on the Cape Hatteras National Seashore in North Carolina, have a salinity that ranges from 18 to 30 ppt. Where does the salt come from?

Answer 1

Ocean Tides.

Step-by-step explanation:

Cape Hatteras National Seashore, is an island established on the coasts of Atlantic ocean. The island consists of salt marshes the salinity of which is affected by oceanic currents, water and wind circulation and sea level changes.