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