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Oxygen Revolution
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Edit
English
edit
English
Wikipedia
has an article on:
Great Oxygenation Event
Wikipedia
Proper noun
edit
Oxygen
Revolution
The
appearance
of
oxygen
in the
Earth
's
atmosphere
, possibly
as a result of
the
evolution
of
photosynthesis
.
Categories
:
English lemmas
English proper nouns
English uncountable nouns
English multiword terms
en:Oxygen
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English terms with non-redundant non-automated sortkeys
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