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.
Because it is a cleaner source of power than oil or coal, nuclear energy is often mistakenly referred to as a renewable resource. The sources of the energy that people use the world over fall into two general categories: renewable and nonrenewable.While the supply of renewable resources, such as sunshine and wind, is virtually limitless, nonrenewable resource supplies are finite.Some nonrenewable resources, including oil and coal, are the product of millions of years of conversion from fossils, the buried remains of ancient plants and animals.ecause it is a cleaner source of power than oil or coal, nuclear energy is often mistakenly referred to as a renewable resource. The sources of the energy that people use the world over fall into two general categories: renewable and nonrenewable.