Permafrost (BTD6): Difference between revisions

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==Trivia==
==Trivia==
* Permafrost is soil or any other underground sediment that has remained at 32°F (0°C) for at least 2 years or more.
* Permafrost is soil or any other underground sediment that has remained at 32°F (0°C) for at least 2 years or more.
** The oldest permafrost has been frozen for around 700,000 years.


==Gallery==
==Gallery==