Ключевые слова: alternative, appliance, architecture, arrow, bar, building, care, category, certificate, chart, class, classification, consciousness, conservation, consuming, consumption, cost, diagram, eco, ecological, ecology, economic, economy, effective, effectiveness, efficiency, efficient, energy, environment, environmental, estate, grade, graph, home, house, illustration, improvement, label, paper, performance, power, property, protection, rating, save, scale, source, spare, symbol, system,