Refurbished. Refurbished phones are used phones that have been inspected, tested, and restored to full working condition at a factory or authorized service center. They may feature new housings or other new parts, or they may simply be used phones that have been tested and certified.ome âº Glossary âº. Refurbished phones are used phones that have been inspected, tested, and restored to full working condition at a factory or authorized service center.
Renewable energy is generally defined as energy that comes from resources which are naturally replenished on a human timescale, such as sunlight, wind, rain, tides, waves, and geothermal heat.enewable energy flows involve natural phenomena such as sunlight, wind, tides, plant growth, and geothermal heat, as the International Energy Agency explains: Renewable energy is derived from natural processes that are replenished constantly.
Biomass is considered a renewable energy source because the carbon in biomass is regarded as part of the natural carbon cycle: trees take in carbon dioxide from the atmosphere and convert it into biomass and when they die, it is released back into the atmosphere.iomass is considered a renewable energy source because the carbon in biomass is regarded as part of the natural carbon cycle: trees take in carbon dioxide from the atmosphere and convert it into biomass and when they die, it is released back into the atmosphere.