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Some Details Suppose an Earth-like world with the following changes: Atmosphere: 67% nitrogen, 31% oxygen, 2% other Average surface temperature: 16.7° C (62° F) Day/night cycle: 20 hours Gravi...
Some Details Suppose an Earth-like world with the following changes: Atmosphere: 67% nitrogen, 31% oxygen, 2% other Average surface temperature: 16.7° C (62° F) Day/night cycle: 20 hours Gravi...