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Alaska
9
Animals
Usa
Mammals
7
General And Miscellaneous
5
54 Environmental Sciences
4
Birds
4
Environment
4
North America
4
Project Chariot
4
Fish
3
Isotopes
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Nuclei
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510100 -- Environment
2
Aquatic Ecosystems
2
Baseline Ecology
2
Beta Decay Radioisotopes
2
Beta-Minus Decay Radioisotopes
2
Carbon Isotopes
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Caribou
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2
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Deer
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Developed Countries
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2
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2
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