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Meaning of oxygen holocaust | Babel Free

Noun CEFR B2

Definitions

  1. Synonym of Great Oxygenation Event.
  2. Synonym of oxygen catastrophe.

CEFR level

B2
Upper Intermediate
This word is part of the CEFR B2 vocabulary — upper intermediate level.
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See also

oxygen lance oxygen mask oxygen pulse Oxygen Revolution oxygen saturation oxygen stone

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