Ключевые слова: abstract, adaptation, analysis, app, background, button, clean, close, concept, conservation, cycle, design, drop, eco, ecological, ecologist, ecology, ecosystem, email, environment, environmental, flat, goods, graphic, icon, industry, internet, isolated, laptop, marketing, media, metal, mobile, nature, pollution, production, retro, savings, science, set, shadow, shopping, sign, simple, style, tablet, water tap, web,