Maintaining fish populations preserves the ocean as a resource and is
fundamental to protecting biodiversity."

True

Explanation:

The marine environment is associated with both biodiversity health and quality of water. The overfishing will not only harm the desired aquatic species but can also kill undesirable fishes and plant species which are removed from their habitat during the fishing process. The some fish species eat up the pollutants in water and sea debris making the environment clean and healthy for other aquatic species. Thus maintaining the fish population will preserve the aquatic environment.

-efficient data acquisition

-medical data processing

-data analysis for research

-voice recognition systems

i think it's c