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| Name | Descripción | Children | Elementos | |
|---|---|---|---|---|
 | Responsabilidad social y ambiental | Term without description | Term without children | Elemento |
| restauración | Term without description | Term without children | Elementos |
| restauración ecológica | Term without description | Term without children | Elementos |
| Revista Ambientico | Term without description | Term without children | Term without items |
| revistas académicas | Term without description | Term without children | Elemento |
| Revistas científicas | Term without description | Term without children | Elemento |
| revistas para-científicas | Term without description | Term without children | Elementos |
| revolución digital | Term without description | Term without children | Elemento |
| riesgo | Term without description | Term without children | Elemento |
| riesgo volcánico | Term without description | Term without children | Elemento |
| riesgos de cannabis | Term without description | Term without children | Elemento |
| Río Tárcoles | Term without description | Term without children | Elemento |