What geological processes can create organic compounds on Mars without life?
Answer
Abiotic geological processes
Finding simple carbon compounds, classified as organic molecules, is insufficient proof of life because these fundamental building blocks can be generated through entirely non-biological or abiotic chemical reactions occurring within the Martian geology. Processes driven purely by heat, pressure, or water-rock interactions over geological timescales can yield these molecular structures. Scientists, therefore, must search for more complex signatures, such as specific organizational patterns or chemical ratios, that are indicative of biological activity rather than simple, spontaneous chemical synthesis.
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