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