Ключевые слова: adult, alternative, appliance, arm, background, beautiful, blue, body, building, certificate, chart, class, clean, closeup, color, colorful, concept, consumption, copy, cost, design, diagram, eco, ecological, ecology, efficiency, efficient, electric, electricity, elegant, energy, environment, female, fingers, focus, graph, green, hands, hold, holding, home, house, human, idea, illustration, industry, label, lifestyle, light, person, posing, power, protecting, pure, rating, red, reduce, renewable, save, saving, scale, showing, sign, something, space, sustainability, symbol, system, technology, text, top, view, woman, young,