Birdwatch Note Rating
2023-06-22 05:58:24 UTC - HELPFUL
Rated by Participant: 57BAA7D1168BC880BD7D6B5C5218D09E18B8EA1E4FE1129271ED62FAC39797BD
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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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