___ oxide (what makes Mars' soil red) Crossword Clue

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Here is the answer for the crossword clue ___ oxide (what makes Mars' soil red) last seen in Universal puzzle. We have found 40 possible answers for this clue in our database. Among them, one solution stands out with a 98% match which has a length of 4 letters. We think the likely answer to this clue is IRON.

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Crossword Answer For ___ oxide (what makes Mars' soil red):

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40 Potential Answers:

RankAnswerLengthSourceDate
98% IRON ___ oxide (what makes Mars' soil red) (4) Universal Aug 14, 2025
5% BLOT Mar (4) Puzzler Backwords Sep 29, 2025
5% LOAM Fertile soil (4) New York Times Sep 29, 2025
5% DIRT Soil (4) USA Today Sep 21, 2025
5% LOESS Windblown soil (5) LA Times Mini Sep 17, 2025
5% LOAMS Fertile soils (5) Universal Sep 17, 2025
5% ROBOT Explorer on Mars (5) Eugene Sheffer Sep 12, 2025
5% LIMEKILN Calcium oxide furnace (8) The Telegraph Cross Atlantic Sep 11, 2025
5% IMPAIR Mar, make worse (6) The Times Concise Aug 27, 2025
5% RUST Oxidize (4) LA Times Daily Aug 14, 2025

Last appeared together with the following clues in Universal puzzle

___ oxide (what makes Mars' soil red) Crossword Clue
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We found 40 solutions for ___ oxide (what makes Mars' soil red). The top solutions are determined by popularity, ratings and frequency of searches. The most likely answer for the clue is IRON.

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