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Earth History Test Review
Test Description: Test Review 2
Instructions: Answer all questions to get your test result.
1) What process caused the material that formed the Earth to gather long ago?
A
radioactive decay
B
solar wind
C
gravitational contraction
D
magma cooling
2) What did the mass extinction at the end of the Permian Period lead to?
A
abundant new life-forms in the Paleozoic Era
B
abundant new life-forms in the Mesozoic and Cenozoic Era
C
fewer resources during the Mesozoic Era
D
little change in the Mesozoic Era
3) According to the impact hypothesis, dinosaurs became extinct when
A
the sun got too close to the Earth
B
the continents moved apart
C
a giant meteorite crashed into Earth
D
volcanic activity increased
4) The repeated advance and retreat of ice sheets characterized which Epoch?
A
Pleistocene
B
Pennsylvanian
C
Mississippian
D
Cambrian
5) Where are the oldest rocks located on a geologic column.
A
the middle
B
the back
C
the top
D
the bottom
6) The formation of an oxygen atmosphere began during which Era?
A
Precambrian Era
B
Mesozoic Era
C
Cenozoic Era
D
Paleozoic Era
7) The age of an object in relation to the ages of other objects is known as its
A
relational age
B
comparative age
C
absolute age
D
relative age
8) Index fossils found in rock layers in different areas of the world indicate that the rock layers
A
formed during different periods of time.
B
never fully formed.
C
are still forming.
D
formed during the same period of time.
9) This isotope is used to date objects less than 70,000 years old.
A
Nitrogen-14
B
Carbon-51
C
Radium-14
D
Carbon-14
10) How is radioactive decay used to determine the absolute age of rocks?
A
Isotopes of different compounds are compared.
B
Original radioactive material remaining in the sample is compared to non-radioactive material formed
C
Radioactive decay cannot be used to determine the age of a rock.
*select an answer for all questions
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