Geologic Time Scale Question Preview (ID: 54398)
Geologic Time Scale.
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_______________ is the long span of time that begins geologic time.
a) Precambrian
b) Cambrian
c) Mesozoic
d) Paleozoic
A unit of geologic time that subdivides eras
a) eons
b) periods
c) time span
d) years
The Triassic Period, the Jurassic Period, and the Cretaceous Period occurred in what era?
a) Cenozoic era
b) Paleozoic era
c) Mesozoic Era
d) Cambrian Era
Scientists divided the time between Precambrian Time and the present into three units of time, or eras.
a) True
b) False
c) IDK
d) Maybe
What period is where humans first appeared?
a) Triassic Period
b) Jurassic Period
c) Mesozoic Period
d) Cenozoic Period
In which time period are we currently living?
a) Precambrian time
b) Cenozoic Era
c) Tertiarry Period
d) Paleozoic Period
. Jellyfish are one of the oldest species on Earth. In what time period did they first appear?
a) Precambrian time
b) Mezozoic Era
c) Devonian Period
d) Paleozoic Era
In what time period did Pangaea, the super continent, appear?
a) Precambrian Time
b) Mesozoic Era
c) Paleozoic Era
d) Cenozoic Era
Dinosaurs, small mammals, and birds are found in this time period.
a) Precambrian Time
b) Paleozoic Era
c) Mesozoic Era
d) Cenozoic Era
What are fossils that are abundant, easily recognizable, short lived, and widespread called?
a) Preserved fossils
b) Index fossils
c) Imprints
d) Radioactive dating
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