Ключевые слова: 3d rendering, advertising, alert, announcement, audio, background, broadcast, communication, concept, conceptual, conservation, design, earth, eco, ecology, environment, fresh, grass, green, growth, icon, lawn, leaf, loud, marketing, meadow, media, megaphone, message, metaphor, microphone, natural, nature, organic, plant, promotion, shape, sign, soil, sound, speaker, speech, spring, summer, symbol, texture, vegetation, warning,