oceanic carbon cycle in a sentence

1. Humans also affect the oceanic carbon cycle.
2. This study will allow researchers to begin to determine whether biofilms are forming on the plastic particles, whether the microbes living on the particles are different from the free-living planktonic organisms, and what effect these communities might have on the oceanic carbon cycle and nitrogen cycle.
3. It is the part of the oceanic carbon cycle responsible for the cycling of organic matter formed by phytoplankton during photosynthesis ( soft-tissue pump ), as well as the cycling of calcium carbonate ( CaCO3 ) formed by certain plankton and mollusks as a protective coating ( carbonate pump ).
4. It's difficult to find oceanic carbon cycle in a sentence.