moneybaggs moneybaggs
  • 20-03-2019
  • Biology
contestada

How did oxygen first enter Earth’s atmosphere

Respuesta :

diego02430 diego02430
  • 20-03-2019

al formarce la atmosfera y al aver agua los seres vivos las bacterias empezaron a modificar y formar plantas y eso hizo el oxigeno

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juliatorres07013 juliatorres07013
  • 14-05-2019

Answer:

biological proceses

Explanation:

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