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    <gcmd:viewer>https://gcmd.earthdata.nasa.gov/KeywordViewer/scheme/sciencekeywords/f1e6caa5-2c97-407d-a0db-7bf01794d8e3</gcmd:viewer>
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    <skos:broader rdf:resource="6eb3919b-85ce-4988-8b78-9d0018fd8089"/>
    <skos:prefLabel xml:lang="en">BIOGEOCHEMICAL CYCLES</skos:prefLabel>
    <gcmd:reference gcmd:text="Libes, S. 1992. An Introduction to Marine Biogeochemistry. John Wiley and Sons. p. 689." xml:lang="en"/>
    <skos:definition xml:lang="en">The transport of materials on the Earth, as a result of biological,geological, and chemical processes.</skos:definition>
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