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