Keywords
25-29 years, access, alternative, alternative energy, answering, business, businessman, cell phone, checking, color image, communication, confidence, connection, day, eco-friendly, energy, engineer, environmental issues, europe, european, examining, expertise, front view, fuel and power generation, green business, green technology, hard-hat, head and shoulders, horizontal, huelva province, inspecting, latin american and hispanic ethnicity, listening, looking up, man, one person, one young man only, outdoors, people, phoning, photography, power, protection, protective workwear, renewable energy, safety, smiling, solar, solar panel, solar power, spain, standing, sunny, sustainability, talking, technology, viewing, wireless technology, worker, working, young adult, stock image, images, royalty free photo, stock photos, stock photograph, stock photographs, picture, pictures, graphic, graphics, fine art prints, print, poster, posters, mural, wall murals, u15061410