Ключевые слова: attrition, breakdown, collapse, corrosion, crumbling, decay, decomposition, degradation, deliquesce, deliquescence, diffusion, disappearance, disbanding, disbandment, disintegration, dispersion, dissolution, dissolve, dissolving, erosion, fading, fragmentation, illustration, liquefaction, melting, pyramid, ruin, solubility, structure, transformation, vanishing, weathering,