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The practical options for energy range from the standard fuels, natural gas, petroleum (or oil), and coal. Fossil fuels are referred to as nonrenewable energy sources because, once used, they are gone. Scientists are exploring the practicality of other sources called renewable energizes. These include sun, wind, geothermal, water, and biomass. The renewable power resources are very important in long range energy planning simply because they will not be depleted. Daphne Groeneveld, 15, is determined to be a promising model. She made her modeling debut at Autumn/Winter 2010 Prada then worked for Miu Miu. The next projects, which this girl took part in, were to be visible on the cover of French Vogue and to pose for star ranking photographers like Mert Alas and Marcus Piggott. Moreover, Groeneveld has marked a milestone in their career when she opened the Calvin Klein exclusive Spring/Summer 2011 show in New York.