Question

an estuary is ________. a. a freshwater biome b. an area with a low concentration of minerals and nutrients c. characterized by deep water d. an ecotone please select the best answer from the choices provided

Explanation:

An estuary is a transitional area between river (freshwater) and sea (saltwater), which is an ecotone (a region of transition between two biological communities). Estuaries have a mix of freshwater and saltwater, are rich in minerals and nutrients, and are usually shallow.

Answer:

D. an ecotone