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Meaning of oxygen catastrophe | Babel Free

Noun CEFR B2

Definitions

  1. Synonym of Great Oxygenation Event.
  2. An event during the oxygenation event of Earth's past, where the level of free oxygen in the environment exceeds the tolerance levels of most extant anaerobic life.
  3. Such an event that theoretically occurs elsewhere, away from Earth.

Equivalents

CEFR level

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

See also

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