Land | 2 | |
Weather | 2 | |
Land Mammals | 1 | |
Microbes | 1 |
1 | 1 | 1 | 2 |
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1 | 1 | 1 | 1 | 1 |
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FALL | 2 | |
SPRING | 1 | |
SUMMER | 1 | |
WINTER | 1 |
Mongolia | 1 | |
Russia | 1 | |
United States | 1 |