Birdwatch Note Rating
2023-06-22 04:14:59 UTC - HELPFUL
Rated by Participant: A5B0855134A7AF2EDDCE4C481D573029775409FF81CDFDD4A33411447559B618
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Original Note:
The caps at both poles of Mars consist primarily of water ice. However, frozen carbon dioxide ("dry ice") accumulates as a comparatively thin layer about one metre thick on the north cap in the northern winter, while the south cap has a permanent dry ice cover about 8 m thick. https://en.m.wikipedia.org/wiki/Martian_polar_ice_caps
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