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54 Environmental Sciences
2
Animals
2
Ecosystems
Mosses
Plants
540210 -- Environment
1
58 Geosciences
1
580202 -- Geophysics-- Volcanology-- (1980-1989)
1
Alaska
1
Algae
1
Aquatic Ecosystems
1
Aquatic-- Basic Studies-- (1990-)
1
Arctic Regions
1
Arthropods
1
Biomass
1
Birds
1
Bryophyta
1
Carbon 13
1
Carbon 14 Compounds
1
Carbon Compounds
1
Carbon Isotopes
1
Chemical Composition
1
Coastal Regions
1
Cryosphere
1
Deer
1
Developed Countries
1
Energy Budgets
1
Energy Sources
1
Environmental Effects
1
Even-Odd Nuclei
1
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