Keywords
2, 30's, 30-35, 30-40, 30s, 35-39 years, 35-40, ability, accurate, adult, alternative, alternative energy, associate, bend, bending, builder, building, carbon neutral, caucasian, change, choice, co-worker, colleague, color, color image, colour, commitment, conscientious, conservation, constructing, construction, construction worker, cooperation, day, daylight, daytime, defending, eco-friendly, efficient, energy, environmental conservation, environmental issues, environmentalism, expert, expertise, exterior, fellow, force, fuel and power generation, gentleman, green, green energy, green living, green technology, guy, harness, hitch, holding, human, human being, instaling, installation, installer, installing, know-how, looking down, male, man, meticulous, mid adult, mid adult men, obligation, occupation, option, outdoor, outdoors, outside, people, person, photography, power, powerful, precise, preservation, protection, renewable energy, responsibility, responsible, roof, rooftop, safeguard, safekeeping, safety, saving, security, side view, skill, solar, solar panel, sustainability, sustainable resources, technique, thirties, thirty, three quarter length, three-quarter length, together, togetherness, toiling, two, two people, vertical, western european, work, worker, working, working together, 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, bld107104