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GEOMORPHOLOGY
Geochemistry and Mineralogy
Geology
7
PERMAFROST
5
SOILS
5
TERRAIN
5
Ice and Permafrost
3
MOUNTAINS
3
SNOW
3
Snow
3
CLIMATE
2
GLACIERS
2
ICE
2
PLANTS(BOTANY)
2
ROCK
2
SEDIMENTATION
2
TECTONICS
2
TRANSLATIONS
2
USSR
2
(*EARTH(PLANET)
1
(*SNOW
1
*AVALANCHES
1
*CLIMATE
1
*EROSION)
1
*GEOLOGIC FORMATION
1
*GEOLOGY
1
*GEOMORPHOLOGY
1
*GLACIERS
1
*GREENLAND
1
*Kenai Peninsula
1
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