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- File:Recycle-arrows.jpg
- File:Recycle.jpg
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- Reduce Your Carbon Footprint - Recycle Paper!
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- Oxygen conservation
- Forest conservation
- Ozone conservation
- Asbestos conservation
- Water conservation
- Aluminium conservation
- Wood conservation
- Helium conservation
- Ammonia conservation
- Sulfate conservation
- Energy conservation
- Fluorine conservation
- Ore conservation
- Rock conservation
- Sand conservation
- Soil conservation
- Oxygen ore conservation
- Oil conservation
- Oxygen production
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