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Quiz #10

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Total cards: 9•Content version: v3•Public deck•Updated: 8/1/2026

Card preview (9)

#1
Front (Question)

Order the eras oldest to most recent

Back (Answer)

Precambrian, Paleozoic, Mesozoic, Cenozoic

#2
Front (Question)

Precambrian

Back (Answer)

Longest and first era when organisms (bacteria) first appear

#3
Front (Question)

Paleozoic

Back (Answer)

2nd era, Age of Invertebrates, Pangea forms

#4
Front (Question)

Mesozoic

Back (Answer)

3rd era, Pangea breaks apart, Age of Reptiles, dinosaurs dominate, first small mammals

#5
Front (Question)

Cenozoic

Back (Answer)

4th era, continents in modern places, Age of Mammals, Ice Age

#6
Front (Question)

Geologic time scale

Back (Answer)

Record of the events of the life forms and geologic events in Earth’s history

#7
Front (Question)

How is the geologic time scale divided and why?

Back (Answer)

Into eras based on major changes in life forms

#8
Front (Question)

What are eras divided into?

Back (Answer)

Periods

#9
Front (Question)

What is one large gap in major time line events of Earth?

Back (Answer)

Formation of Earth and 1st organisms bc the amount of oxygen wasn’t enough at first