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Geologic Time
Test Description: Geologic Time
Instructions: Answer all questions to get your test result.
1) What do scientists believe caused the extinction of the dinosaurs?
A
a long drought
B
the increase in numbers of mammals
C
a large object from space hitting the Earth
D
the appearance of man
2) Which vertebrate did not live during the time of the dinosaurs?
A
alligators
B
fish
C
man
D
birds
3) What is the best evidence that many different geologic periods are represented in Virginia?
A
the length of its rivers
B
the amount of chemical weathering
C
the location of the Piedmont
D
the presence of fossils of different ages
4) Compared to the Rocky Mountains, the Appalachian Moutains are much
A
older
B
higher
C
less eroded
D
thicker
5) Which of these is the best evidence that the Earth's crust has undergone some major changes?
A
Magnetic reversals in layers of rock
B
Depletion of oxygen in lakes and rivers
C
Land forms carved by glaciers in temperate (warm) regions
D
Ocean currents
6) Of the following, the largest divison of the geologic time scale is
A
a period
B
an era
C
an epoch
D
a year
7) Which of these is the best evidence that the Earth's crust has undergone some major changes?
A
the amount of available water on Earth
B
the location of major rivers
C
the arrival of the vernal equinox
D
the presence of marine fossils in mountain rock
8) Of the following, the smallest division on the geologic time scale is
A
a period
B
an epoch
C
a year
D
an era
9) What era do we live in?
A
Cambrian
B
Cenozoic
C
Paleozoic
D
Mesozoic
10) How old do scientists believe the Earth is?
A
3.6 Million years old
B
2.6 Billion years old
C
4.6 Million years old
D
4.6 Billion years old
*select an answer for all questions
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