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DDC Course Title 🇺🇸 🇪🇺 🎓 📚 🏫 📜 ▶️ 🌐 Actions
551(0105) Crust of earth 447 5
551(0106) Coasts,shorelines 1328
551(0107) Craters - depressions- 868
551(0108) Meteorite craters 835
551(0109) Craters 262 1
551(0110) Twilight 198 3
551(0111) Crete Sea of 274
551(0112) Frazil ice 325
551(0113) Quaternary period 351
551(0114) Necks 60
551(0115) Central Pacific Basin 1697
551(0116) Water bodies 1279 62
551(0117) Caves 261
551(0118) Dardanelles 105
551(0119) Deformation 128 7
551(0120) Deltas 195
551(0121) Deposition 235 58
551(0122) Depressions 301
551(0123) Continental drift 206
551(0124) Glacial drift 294
551(0125) Desertification 1
551(0126) Deserts 1
551(0127) Landslides 8
551(0128) Sea-floor spreading
551(0129) Rockfalls
551(0130) Snow drifts
551(0131) Devonian period
551(0132) Diastrophism
551(0133) Dynamics 103
551(0134) Dikes - geology-
551(0135) Gutenberg discontinuity
551(0136) Mohorovicic discontinuity
551(0137) Scattering of light 52
551(0138) Dover Strait of
551(0139) Dunes
551(0140) Earth's age 49
551(0141) Ice age 14
551(0142) Subsurface water 34
551(0143) Sky color 2
551(0144) Sea ice 268
551(0145) Atmospheric electricity 15
551(0146) Electricity 102
551(0147) Elements - meteorology-
551(0148) Elevations - physiography- 161
551(0149) Deep-sea surveys 56
551(0150) Snow surveys 174 1
551(0151) Dixon Entrance 183
551(0152) Eocene epoch 148
551(0153) Cryptozoic eon 7
551(0154) Phanerozoic eon 133
551(0155) Epeirogeny 144
551(0156) Archean era 161
551(0157) Postglacial epoch 25
551(0158) Recent epoch 151
551(0159) Precambrian eras 143
551(0160) Algonkian era 28
551(0161) Archeozoic era 30
551(0162) Cenozoic era 118
551(0163) Mesozoic era 77
551(0164) Paleozoic era 23
551(0165) Proterozoic era 88
551(0166) Erosion 173 15
551(0167) Beach erosion 154
551(0168) Wind erosion 142 5
551(0169) Hoarfrost rime 24
551(0170) Cleavage rifts 144
551(0171) Runoff 172 5
551(0172) Mirages 51
551(0173) Ponds 172 3
551(0174) Steppes 53
551(0175) Stratifications 34
551(0176) Stratigraphy 173
551(0177) Bass Strait 124
551(0178) Bering Strait 156
551(0179) Cook Strait 120
551(0180) Davis Strait 151
551(0181) Denmark Strait
551(0182) Strait of Dover
551(0183) Formosa Strait
551(0184) Strait of Georgia
551(0185) Strait of Gibraltar 13
551(0186) Hecate Strait
551(0187) Strait of Juan de Fuca
551(0188) Straits of Florida
551(0189) Luzon Strait
551(0190) Strait of Magellan
551(0191) Strait of Malacca
551(0192) Strait of Messina
551(0193) Strait of Hormuz
551(0194) Strait of Otranto
551(0195) La Perouse Strait
551(0196) Strait of Sicily 4
551(0197) Singapore Strait
551(0198) Queen Charlotte Strait
551(0199) Bahia Blanca Estuary
551(0200) Firth of Clyde
551(0201) Firth of Forth
551(0202) La Plata Estuary 102
551(0203) Estuaries 171 10
551(0204) Evaporation 158
551(0205) Evapotranspiration 148 1
551(0206) Explorations 95 3
551(0207) Slope failure 139
551(0208) Faults 168 9
551(0209) Mud flows 174
551(0210) Ocean bottom 156 12
551(0211) Cloud particle formation 162 41
551(0212) Soil formation 168 28
551(0213) Atmospheric formations 137 6
551(0214) Land forms 170 2
551(0215) Photochemistry 33 6
551(0216) Rock fragmentation 145 4
551(0217) Cold fronts 175
551(0218) Fronts 67
551(0219) Saint Elmo's fire 160
551(0220) Fumaroles 185
551(0221) Gorges 108
551(0222) Gases in atmosphere 166 16
551(0223) Geysers 128
551(0224) Geology 164 14
551(0225) Structural geology 167 18
551(0226) Physical geology 121 76
551(0227) Historical geology 126 18
551(0228) Marine geology 172 6
551(0229) Oceanographic geology 106 5
551(0230) Submarine geology 148 1
551(0231) Geologists 123
551(0232) Geomorphology 148
551(0233) Submarine geomorphology 151
551(0234) Geomorphologists 143
551(0235) Geochemistry 133 15
551(0236) Geosynclines 153
551(0237) Geotectonics 45
551(0238) Glaciers 167 3
551(0239) Glaciology 72 10
551(0240) Gulf of Aden 154
551(0241) Gulf of Alaska 170
551(0242) Gulf of Aqaba 125
551(0243) Gulf of Cadiz 106
551(0244) Gulf of California
551(0245) Gulf of Carpentaria
551(0246) Gulf of Corinth
551(0247) Gulf of Darien
551(0248) Gulf of Finland
551(0249) Gulf of Guayaquil
551(0250) Gulf of Guinea 7
551(0251) Gulf of Honduras 1
551(0252) Gulf of Lions
551(0253) Gulf of Mannar
551(0254) Gulf of Maracaibo
551(0255) Gulf of Martaban
551(0256) Gulf of Mexico
551(0257) Gulf of Oman
551(0258) Gulf of Panama
551(0259) Gulf of Papua
551(0260) Gulf of Paria
551(0261) Gulf of Riga
551(0262) Gulf of Saint-Malo
551(0263) Gulf of San Jorge
551(0264) Gulf of Saint Lawrence
551(0265) Gulf of San Matías
551(0266) Gulf of Siam
551(0267) Gulf of Suez
551(0268) Gulf of Thailand
551(0269) Gulf of Taranto
551(0270) Gulf of Tehuantepec
551(0271) Gulf of Tonkin
551(0272) Gulf of Urabá
551(0273) Gulf of Venice
551(0274) Gulf of Venezuela
551(0275) Bay of Biscay 16
551(0276) Persian Gulf 2
551(0277) Gulf pf Bothnia
551(0278) Great Australian Bight
551(0279) Great Belt
551(0280) Hail
551(0281) Hailstones
551(0282) Gravity 88
551(0283) Grottoes
551(0284) Halos
551(0285) Till - geological land forms-
551(0286) Till 10
551(0287) Frost 1
551(0288) Frost - crystals-
551(0289) Frost - temperatures-
551(0290) Hydrography
551(0291) Freshwater hydrology 2
551(0292) Hydrology 11
551(0293) Hydrometeorology
551(0294) Hydrosphere
551(0295) Ice 172
551(0296) Anchor ice
551(0297) Strikes - geology-
551(0298) Humidity 5
551(0299) Moisture 2
551(0300) Subsidence
551(0301) Hurricanes-
551(0302) Hurricanes
551(0303) Icebergs 5
551(0304) Growlers - ice formations-
551(0305) Dips - geology-
551(0306) Instrumentation 25
551(0307) Interior of earth 30
551(0308) Intrusions
551(0309) Floods 8
551(0310) Ionization 4
551(0311) Islands 95
551(0312) Barrier islands
551(0313) Urban heat islands 34
551(0314) Japan Current 2
551(0315) Jurassic period
551(0316) Kames
551(0317) Karsts
551(0318) Kattegat
551(0319) Sea breezes 1
551(0320) Salinity 5
551(0321) Laccoliths
551(0322) Lake ice 1
551(0323) Lakes 23
551(0324) Salt lakes
551(0325) Lagoons 2
551(0326) Freshwater lagoons
551(0327) Saltwater lagoons 1
551(0328) Storm surges 16
551(0329) Horse latitudes
551(0330) River beds 3
551(0331) Lions Gulf of
551(0332) Limnology 5
551(0333) Lithosphere
551(0334) Plains
551(0335) Rain 2
551(0336) Acid rain 1
551(0337) Sea-level changes
551(0338) Glaze
551(0339) Magma
551(0340) Magnetosphere 157 2
551(0341) Manche,Channel of the 59
551(0342) Mantle of earth 145 52
551(0343) Laccadive Sea 73
551(0344) Adriatic Sea 63 18
551(0345) Yellow Sea 28
551(0346) Balearic Sea 125
551(0347) Baltic Sea 79 75
551(0348) Caribbean Sea 118 7
551(0349) Chuckchee Sea 135
551(0350) Amundsen Sea 128 1
551(0351) Andaman Sea 90
551(0352) Arafura Sea 77
551(0353) Sea of Azov - ukraine 146
551(0354) Bali Sea 84

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