Land | 22 | |
Surface Waters / Wetlands | 11 | |
Weather | 7 | |
Plants / Kelp | 6 | |
Atmosphere | 4 | |
Groundwater | 3 | |
Ocean / Sea | 2 | |
Air | 1 | |
Birds | 1 | |
Fish | 1 | |
Land Mammals | 1 |
6 | 12 | 4 |
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1 | 2 | 5 | 3 | 1 | 4 | 3 | 2 | 1 |
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SPRING | 8 | |
SUMMER | 8 | |
FALL | 6 |
United States | 16 | |
Canada | 4 | |
Afghanistan | 1 |