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© May 2005 Lorentz JÄNTSCHI && Sorana Daniela BOLBOACĂ

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 G03 Environment and Public Health D004778 +
  G03.230 Environment D004777 +
    G03.230.058 Altitude D000531 
    G03.230.069 Cities D002947 
    G03.230.080 Conservation of Natural Resources D003247 +
    G03.230.100 Disasters D004190 +
    G03.230.132 Energy-Generating Resources D004736 +
    G03.230.200 Environment Design D004779 
    G03.230.150 Environment, Controlled D004780 +
    G03.230.230 Extraterrestrial Environment D005118 +
    G03.230.300 Meteorological Factors D008685 +
    G03.230.400 Noise D009622 
    G03.230.480 Odors D009812 
    G03.230.560 Seasons D012621 
    G03.230.600 Soil D012987 
    G03.230.700 Water D014867 
    G03.230.265 Greenhouse Effect D017752 
    G03.230.124 Ecosystem D017753 +
    G03.230.074 Confined Spaces D020378