Answer:e a marine ecosystem is the life underwater like sea creaters ,a weed etc s
Explanation:
online defnation : Marine ecosystems are characterized by the biological community of organisms that they are associated with and their physical environment.
heres a fact Some important characteristics of the marine ecosystem are: They make up 70% of the earth’s surface. They dissolve the salts in their own waters. Supplies food for humans and generates socioeconomic benefits. They fall into the category of aquatic ecosystems
