asyadowney1
asyadowney1 asyadowney1
  • 17-11-2016
  • History
contestada

What separates an eon into eras?
a) changes in rock layers
b) spieces extinctions (changes in types of organisms)
c) 300 million year chunks
d) types of plants and animals

Respuesta :

shinitora35 shinitora35
  • 04-09-2019

Answer:

c

Explanation era's aren't defined by time but for a duration of time eons are what make it 300 million years

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