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Geological Time
Test Description: Chapters 12 and 13
Instructions: Answer all questions to get your test result.
1) The largest expanse of time on the geological time scale is the
A
era
B
period
C
eon
D
epoch
2) The era of ancient life iis know as the
A
Cenozoic
B
Mesozoic
C
Precambrian
D
Paleozoic
3) About 88% of Earth's history is with the expanse of time before the Phanerozoic Era called the ___________.
A
Cambrian
B
Precambrian
C
Paleozoic
D
Cenozoic
4) Some continents contain large core area of Precambrian rocks called
A
plates
B
shields
C
plateaus
D
rifts
5) Which of the followig gases was NOT part of Earth's original atmosphere?
A
oxygen
B
carbon dioxide
C
water vapor
D
nitrogen
6) What is the major source of free oxygen in the atmosphere?
A
molten rock
B
silicate minerals
C
green plants
D
water
7) The most common Precambrian fossils are layered mounds of calcium carbonate called
A
chert
B
prokaryotes
C
stromatolites
D
tribolites
8) The Paleozoic era lasted about
A
2 billion years
B
29 million years
C
292 million years
D
2 million years
9) During the early Paleozoic era, South America, Africa, Australia, Antartica, India and perhaps China comprised the vast southern continent of
A
Europe
B
Laurasia
C
Gondwanda
D
Pangea
10) Laurasia was made up of which modern continents
A
Africa, South America and eastern Asia
B
Europe, South America and Antartica
C
North America and South America
D
North America, Europe and western Asia
*select an answer for all questions
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