The polar caps on Mars are most likely made up of A) water and CO₂ ices. B) light-colored dust blown there by intense dust storms and large dust devils. C) volcanic outflow of light-colored lava and dust similar to that produced by Earth-based volcanoes. D) sulfur dioxide and sulfur compounds.

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Quizplus · Accepted Answer

The polar caps on Mars are believed to be composed mainly of water ice, with some carbon dioxide and other trace elements. Studies by Mars missions such as the Mars Reconnaissance Orbiter have confirmed the presence of these ices at the poles of the planet.

The Polar Caps on Mars Are Most Likely Made Up