Biofuel education. Assortment of biomass feedstock,used for a lesson in renewable energy during an educational program at the National Renewable Energy Laboratory's (NREL) Visitor Center,Colorado,USA | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / US DEPARTMENT OF ENERGY / NREL / Dennis Schroeder |
Bildgröße: | 2412 px × 3626 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |