Ключевые слова: aquatic, arctic, asian, background, baikal, blue, chemical formula, clear, climate, cold, conservation, cracks, crystal, deep, ecology, environment, fresh water, frost, frozen, glacial, globe, h2o, ice, icy, letters, natural, nature, north, object, planet, pole, reflection, reserves, russia, season, siberia, sign, stock, structure, surface, texture, textured, transparent, water, wide angle, winter,