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Cél articllo est ècrit en arpetan supradialèctâl / ORB lârge. |  |
Los sciences naturèles sont activitâts intelectuâles de ètudiyér los fenomènos de la natura.
Champs de rechèrche
- Astronomia
- Geologia
- G·eografia
- Biologia
- Mèdecina
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