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Geochemistry and Mineralogy
2
Geology
PERMAFROST
(*EROSION
1
(*SOILS
1
*GEOGRAPHY
1
*SOILS
1
ARCTIC REGIONS
1
CLIMATE
1
DAMAGE
1
FOREST FIRES
1
FREEZING
1
GRASSES
1
GREENLAND
1
ICE
1
MELTING
1
MINERALS
1
PROTECTION
1
SIBERIA)
1
SOIL CONSERVATION
1
SOILS)
1
Soil Mechanics
1
TERRAIN
1
TRANSLATIONS
1
TUNDRA
1
USSR
1
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