Ключевые слова: a machine, alternative, circuit, climate, design, drops, earth, eco, electric, energy, environment, environmental pollution, environmental protection, filling, flat, flower, forest, global, green, house, icon, icon ecology, illustration, illustrations, isolated, lamp, land, leaves, light colored, line, lining, naturally, plant, power, product, recycling, renewable warming, rubbish, set, sign, symbol, technology, the internet, thin, to recycle, water, web, wind, wood,