Answer:
The use of "navigable" indicates a deep aquatic environment and wide enough to provide passage to the ships .
Step-by-step explanation:
The term "navigable" was placed in these excerpts, with the aim of making reference to the quality of an aquatic environment to be navigable, that is, to be able to travel freely by boats or ships, without obstacles or insurmountable restrictions, and in a safe way.
The Amazon River, for example, is an example of navigable river.