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General Terms [Environmental Aspects]
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General Terms [Use of Environmental Resources, Technical Aspects]
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[Administration, Management, Institutions, Planning, Politics]
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[Agriculture, Forestry, Animal Husbandry and Fishery]
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[Atmosphere and Climate]
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[Biosphere - Organisms, Biological Systems and Processes]
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[Chemical Substances and Processes]
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[Conventions and Legal Regulations]
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[Deprecated Concepts]
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[Earth and Outer Space]
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[Economics and Finance]
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[Energy and Resources]
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[Environmental Education and Public Relations]
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[Environmental Information and Data]
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[Environmental Policy and Environmental Law]
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[Health and Nutrition]
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[Historical Geographic Names]
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[Hydrosphere - Water and Water Bodies]
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[Landscape, Geography, Geology]
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[Lithosphere, Soils]
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[Oceans and Seas]
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[Other Concepts]
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[Physical Aspects and Processes]
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[Pollutants and Wastes]
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[Products and Materials]
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[Protection of Nature, Landscape, Soils and Waters]
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[Recreation and Tourism]
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[Risks and Safety]
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[Science and Research]
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[Society and Social Affairs]
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[Technical Processes, Equipments]
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[Technical Values and Norms]
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[Trade, Commerce and Services]
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[Traffic and Transport]
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[Urban Environment, Construction and Housing]
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[Use and Management of Resources]