may7515
may7515 may7515
  • 04-05-2021
  • Biology
contestada

Which natural resource necessary in many space flight technologies is widely available on Earth because the Sun-Earth system is so young? A. hydrogen B. wind energy C. helium D. aluminum

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brennan24
brennan24 brennan24
  • 04-05-2021
b is the answer to the question
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