What material forms the bulk of Mars' seasonal polar caps?

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What material forms the bulk of Mars' seasonal polar caps (the ones that grow in winter and dissipate in summer)?

2007-10-02 08:23:01 · 3 answers · asked by helloagain1968 2 in Science & Mathematics ➔ Astronomy & Space

Solid CO2 with traces of water-ice.

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2007-10-02 08:26:49 · answer #1 · answered by tlbs101 7 · 3⤊ 0⤋

Dry ice. It forms from the icing of CO2 at the very low temperatures of Mars' polar regions.

2007-10-02 15:36:33 · answer #2 · answered by dottorinoUCSC82 5 · 0⤊ 0⤋

Dry ice - solid CO2.

2007-10-02 15:26:07 · answer #3 · answered by quantumclaustrophobe 7 · 1⤊ 0⤋