Complete the following sentence with the correct freshwater biome.

A(n) __________ formed at the mouth of the river and was filled with species that could live in varying levels of salinity.

A. bog
B. estuary
C. lake
D. swamp



Answer :

Final answer:

Estuaries are unique freshwater biomes formed at river mouths where freshwater meets saltwater, supporting diverse aquatic life.


Explanation:

Estuaries are freshwater biomes formed at the mouth of the river, where freshwater mixes with saltwater creating brackish conditions. They are filled with species adapted to varying levels of salinity, providing nourishment and shelter for various organisms, such as young crustaceans, mollusks, and fishes.


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