Weather | 4 | |
Surface Waters / Wetlands | 3 | |
Land | 2 | |
Ocean / Sea | 2 | |
Microbes | 1 |
Erosion | 1 | |
Landslide / Avalanche | 1 | |
Thunderstorm | 1 | |
Fire | 1 |
2 | 1 | 1 |
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1 | 1 | 1 | 1 |
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SUMMER | 2 | |
SPRING | 1 | |
WINTER | 1 |
United States | 2 | |
Canada | 1 |