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