Materials or substances such as land, timber, fresh water, fossil fuels, or mineral deposits that occur in a natural state and have economic value or usefulness to humans.
See also reference (FX) in Slovak
zachovanie prírodných zdrojov
See also reference (FX) in English
Conservation of Natural Resources
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(1) - MeSH descriptor
subject heading
Number of the records: 1
openseadragon
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