Ключевые слова: black, celsius, cold, concept, contour, electricity, energy, environment, exhaust, fahrenheit, forest, gas, generator, globe, ground, hand, heat, hot, icon, industry, isolated, line, linear, meteorology, nature, oil, outline, planet, pollution, power, sea, set, ship, smoke, soil, summer, sunlight, sunshine, symbol, tanker, temperature, transport, turbine, vehicle, weather, white, windmill, world,