Why didn't the Viking landers find organic molecules in the soil on Mars?
A) The Martian soil contains perchlorate, which destroyed the organic molecules when heated during the experiments.
B) There are no organic molecules on Mars because they were carried away by the solar wind.
C) The Viking landers were not designed to detect organic molecules.
D) Organic molecules exist too deep below the surface of Mars to be detected.
A) The Martian soil contains perchlorate, which destroyed the organic molecules when heated during the experiments.
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