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it is relatively unreactive due to the strength of its triple bond. Despite this, atmospheric N₂ was at least moderately important to the prebiotic environment because it impacts the climate via Rayleigh scattering and it may have been more photochemically active under the enhanced x-ray and ultraviolet radiation from the young Sun. N₂ was also likely important for the synthesis of compounds believed to be critical for the origin of life, such as hydrogen cyanide

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