Geography

Geography, 12.11.2019 03:31, kaykay9243

Which of the following events separate geologic time into eras and periods?
the creation of new ocean ridges
the appearance and disappearance of volcanoes
the appearance and disappearance of groups of organisms
the number of earthquakes occurring at that time

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Biology, 29.06.2019 23:20, denym58

Eons are the broadest category of geologic time, and we live in the phanerozoic eon. the phanerozoic eon is further divided into eras. what divides the three eras of the phanerozoic eon? a. mass extinction events separate the three eras from each other. b. the first life on earth and the first multicellular life on earth separate the three eras from each other. c. the development of insects and the development of flying insects separate the three eras from each other. d. the appearance of carbon on earth and the appearance of atmospheric oxygen separate the three eras from each other.

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Biology, 01.07.2019 01:10, conyabrew82

Eons are the broadest category of geologic time, and we live in the phanerozoic eon. the phanerozoic eon is further divided into eras. what divides the three eras of the phanerozoic eon? a. the appearance of carbon on earth and the appearance of atmospheric oxygen separate the three eras from each other. b. the development of insects and the development of flying insects separate the three eras from each other. c. the first life on earth and the first multicellular life on earth separate the three eras from each other. d. mass extinction events separate the three eras from each other.

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Biology, 06.11.2019 22:31, momoney5746

6. eons are the broadest category of geologic time, and we live in the phanerozoic eon. the phanerozoic eon is further divided into eras. what divides the three eras of the phanerozoic eon? rams o a. mass extinction events separate the three eras from each other. o b. the first life on earth and the first multicellular life on earth separate the three eras from each other. o c. the appearance of carbon on earth and the appearance of atmospheric oxygen separate the three eras from each other. o d. the development of insects and the development of flying insects separate the three eras from each other.

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Chemistry, 07.11.2019 18:31, Joshyy23

Which of the following events separate geologic time into eras and periods? the appearance and disappearance of volcanoes the appearance and disappearance of groups of organisms the creation of new ocean ridges the number of earthquakes occurring at that time

Answers: 2

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the creation of n...

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