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Rocks And Fossils
Test Description: Earth Science Ch 6
Instructions: Answer all questions to get your test result.
1) If a trilobite was buried by ocean sediment, it would leave a cavity, or a(n)
A
trace fossil
B
mold
C
cast
D
index fossil
2) What process involves the comparison of rock layers with others in a sequence to determine its age?
A
radiometric dating
B
relative dating
C
radioactive decay
D
absolute dating
3) Which of the following is the largest division of geologic time?
A
era
B
epoch
C
period
D
eon
4) Erosion is one of the major causes of the missing rock layers, known as
A
unconformities
B
superposition
C
tilting
D
the geologic column
5) A fossil used to date surrounding rock layers is called a(n)
A
cast
B
index fossil
C
mold
D
trace fossil
6) To determine the most accurate and precise age of Earth's oldest rocks, geologists would use
A
the carbon-14 method
B
relative dating
C
index fossils
D
the uranium-lead method
7) Which of the following is a trace fossil?
A
a mosquito trapped in amber
B
a mark left by a dinosaur's tail
C
a frozen woolly mammoth
D
a mummified plant seed
8) How many years of the history of Earth do geologists study?
A
4.6 million years
B
5,000 years
C
1,000 years
D
2.5 million years
9) Which of the following processes always occurs at a steady rate?
A
sediment deposition
B
decay of organic matter
C
radioactive decay
D
erosion
10) The phrase "younger over older" could be used to remember the principle of
A
absolute dating
B
unconformaties
C
geologic columns
D
superposition
*select an answer for all questions
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