Question

which
ongest ducation,
of the following​

Answer 1

Answer:

Eon is the longest duration of geological time. Eon are recognised as, the phanerozoic eon, the proterozoic eon and the archean eon. And eon refers to a span of 1 billion years. Eon is subdivided into eras, and further era is subdivided into periods, epochs and stages.