During the Archaean Eon
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In the Archean eon, precambrian era because the first prokaryote appeared around 3.5 billion years ago.
the first plants appeared about 3000 years ago. the first plant was algae.
The first villain to appear in the official James Bond series of films from Eon Productions was Dr. Julius No in Dr. No (1962). The first Bond villain ever was Le Chiffre in the television film Casino Royale (1954) on Climax!.
The first abundant fossil evidence first appeared during the Paleozoic Era. It was the first era of the Phanerozoic Eon, which occurred 540 million years ago.
There are two: EON which is the first, and then the second EONA.
archean eon
5th Edit: The ancient Greeks referred to an eon as being an eternity, so by that definition, we would be in the one and only eon, but in geology, an eon amounts to about 1 billion years, making the Earth be 4.6 eons old, so, the answer would either be the first eon, or the 5th eon. Depends on how you look at it.
No. Answer No, flowering plants (angiosperms) first appeared (as far as we know) in the Cretaceous period.
Yes, Eon is the the first, Eona it's sequel. They are very good, I've read them both.
Plants do not appear evergreen. They either are or are not evergreen. Evergreen plants do not drop all their leaves in the Autumn.