Ключевые слова: alternative, battery, bin, biomass, bulb, can, collection, contour, eco, ecological, ecology, electric, electricity, energy, generation, geothermal, hydroelectric, hydrogen, hydropower, icon, industry, lamp, light, line, long, object, plant, power, push, recycle, renewable, round, scooter, selfbalancing, set, shadow, sign, solar, station, sun, symbol, thin, tidal, transport, tree, water, watering, wave, wind,