Verified Answer :

The correct answer is letter D. Marine Ecosystem. Thirty-two percent of the world's producers is in the marine ecosystem. It is where most of the aquatic resources are located - mangroves, lagoons, reefs, sea floor, etc. The salt content here is higher compared to freshwater.

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Answer:

D: Marine ecosystem

Explanation:

Marine ecosystems contain 32 percent of the world's producers as three-thirds of the earth surface is water and provides a natural habitat to a wide variety of small and large living species and plants.

It is where most of the aquatic resources are located - mangroves, lagoons, reefs, sea floor, etc. The salt content here is higher compared to freshwater.

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