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| organic molecule | A molecule containing carbon.
| | | | | outflow channel | A Martian valley with few tributaries probably formed by the sudden melting and runoff of subsurface water.
| | | | | patera | A type of Martian volcano that resembles shield volcanos, but has even more gentle slopes.
| | | | | runoff channel | One of a network of Martian valleys that probably were formed by the collection of widespread rainfall.
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