Ключевые слова: acidic, color, colored, deposit, desert, deserted, emits, field, fumarole, fume, gas, geology, ground, hollow, hot, hydrothermal, landscape, lifeless, mendeleev, mineral, native, natural, nature, poisonous, slope, soil, solfatara, sulfide, sulfur, sulfurous, tephra, toxic, vapor, volcanic, volcano, yellow,