 Which of these was not a consequence of the Great Atomic Wars?
Nothing but what had stopped us could stop a sandcat: sand in the delicate mechanism of the atomic engine. Earth needed radioactives, and the only way to get them was to get out and look. The great atomic wars of the late 20th Century had used up much of the supply, but the amount used to blow up half the great cities of the world hardly compared with the amount we needed to put them back together again. They had used their atomics to make bombs. It was an atomic world. Everything: power drills, printing presses, typewriters, can openers, ocean liners, powered by the inexhaustible energy of the dividing atom. With every source of uranium mined dry on Earth, we had tried other possibilities.
 Multiple planets were settled by various countries in a display of power
 Limited resources ran out over time  Multiple planets were settled by various countries in a display of power  All major types of power sources changed  Earth decided to run supply missions to Mars