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1. INFLUENCE OF CHANGES IN THE LEVEL OF SALINITY OF THE ARAL SEA ON THE DEVELOPMENT OF ECOSYSTEMS
2. The role of the mining and processing enterprise in the formation of techno-geochemical anomalies of arsenic in the soils of the Soymonovskaya Valley (Southern Urals)
3. STUDY OF HYDROLOGICAL AND GEOSTRUCTURAL CHANGES IN THE KOSKORGAN RESERVOIR DUE TO CLIMATIC CHANGES
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