MDS 551.48309

Wording: Natural sciences & mathematics Earth sciences; geology Geology, Hydrology Meteorology Landforms / Bodies of Water Rivers; Lakes Rivers Not set Not set

Dewmoji: 🔬🌎🌋?????

0 Computer science, information & general works 252,013 ℹ️	1 Philosophy & psychology 270,129 🧠	2 Religion 681,242 🙏	3 Society, government, & culture 1,328,382 👫	4 Language 209,883 💬	5 Natural sciences & mathematics 431,918 🔬	6 Applied science & technology 940,635 💡	7 Arts & recreation 1,031,850 🎨	8 Literature & rhetoric 1,436,736 📚	9 History & geography 837,760 🗺️
50 Science 35,266 🥼	51 Mathematics 82,055 ➗	52 Astronomy 25,356 🔭	53 Physics 44,008 🍎	54 Chemistry 28,260 ⚗️	55 Earth sciences; geology 36,663 🌎	56 Fossils & Dinosaurs 11,038 💀	57 Biology 55,751 🧬	58 Plants (Botany) 26,824 🌿	59 Animals 86,697 🐼
550 Earth science, Volcanoes & Earthquakes 4,149 🌎	551 Geology, Hydrology Meteorology 23,302 🌋	552 Petrology 1,902 🤘	553 Economic geology 2,941 ⛏️	554 Earth sciences of Europe 776 🐗	555 Earth sciences of Asia 257 🐯	556 Earth sciences of Africa 304 🦁	557 Earth sciences of North America 2,340 🐺	558 Earth sciences of South America 146 🐸	559 Earth sciences of Australasia, Pacific Ocean islands, Atlantic Ocean islands, Arctic islands, Antarctica, extraterrestrial worlds 546 🐨
551.0 standard subdivisions 375	551.1 Structure of the earth as a whole 587	551.2 Volcanoes, earthquakes, thermal waters and gases 2,014 🌋	551.3 Surface and exogenous processes and their agents 1,177	551.4 Landforms / Bodies of Water 7,577	551.5 Atmosphere, Tornadoes, Hurricanes 5,004 ☁️	551.6 Climate & Weather 2,898	551.7 Historical geology 1,121	551.8 Structural geology 470	551.9 Agents of geologic work 246
551.40 44	551.41 Continents 451	551.42 Islands 103	551.43 Mountains; Valleys; Orology 239	551.44 Caves 385	551.45 Plains 357	551.46 Oceans 2,514	551.47 Ocean currents 186	551.48 Rivers; Lakes 1,662	551.49 Springs; Wells; Ground water 409
551.480 121	551.481	551.482 Lakes 56	551.483 Rivers 205	551.484 Waterfalls 31	551.485	551.486	551.487	551.488 11	551.489 77
551.4830 50	551.4831	551.4832	551.4833	551.4834	551.4835	551.4836	551.4837	551.4838	551.4839
551.48300	551.48301	551.48302	551.48303	551.48304	551.48305	551.48306	551.48307	551.48308	551.48309 49
551.483090	551.483091	551.483092	551.483093	551.483094 22	551.483095 6	551.483096	551.483097 6	551.483098	551.483099 13