Explanation:
The abiotic factors help to circulate or transport the carbon element and its compounds in the ecosystem.
Abiotic factors are simply the non living parts of an ecosystem, such as wind, water, the rocks, volcanic eruption, sunlight etc.
An ecosystem is simply an interaction between the living organisms (biotic factors) and the non-living organisms in a habitat.
Therefore in a marine ecosystem abiotic factors such as wind and the water flow help to cycle the carbon which a vital element for the survival of the biotic factors in the ecosystem.