Answer:
A) feeding and B) breeding
Step-by-step explanation:
Saltwater marshes are highly productive ecosystems that provide abundant food and shelter for invertebrates such as crabs, shrimp, and clams. Many fish species use these areas as breeding grounds, where they can find ample food and protection from predators. Saltwater marshes also play an important role in maintaining the overall health of coastal ecosystems by filtering water, reducing erosion, and buffering the impacts of storms and sea level rise.
Hope this helps!