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Dating Methods
Test Description: Vocabulary
Instructions: Answer all questions to get your test result.
1) The age of a rock given as the number of years since the rock formed.
A
geology
B
absolute
C
unconformity
D
relative
2) The age of a rock compared to the ages of rock layers. (approximately)
A
radiometric
B
relative
C
fault
D
absolute
3) The time it takes for half of the atoms in a radioactive element to decay
A
isotope
B
atomic decay
C
absolute dating
D
half-life
4) Older rocks lie below the youngest rocks.
A
Cabon-14 dating
B
Law of Gravity
C
Law of Superposition
D
Unconformity
5) The breakdown of a radioactive isotope, releasing particles and energy.
A
Fusion
B
Atomic decay
C
Relative dating
D
Radioactive decay
6) A gap in the geologic column...
A
intrusion
B
fault
C
unconformity
D
extrusion
7) The Law of Superposition states...
A
older rocks are below the youngest rocks
B
all rocks are the same age
C
older rocks are above younger rocks
D
younger rocks are below older rocks
8) Carbon-14 is an example of ...
A
fossil
B
a fault
C
an isotope
D
an intrusion
9) Index fossil have 2 requirements...
A
are common and lived a short time
B
very rare and lived a short time
C
are common and lived a very long time
D
very rare and lived a long time
10) The Geologic Time Scale
A
organizes earth's major events so earth's history is easier to study
B
helps scientists determine past climates
C
helps scientists determine the seasons
D
does not exist
11) Air bubbles trapped inside ice cores help scientists determine...
A
absolute age of rocks
B
types of fossils in an area
C
relative age of rocks
D
past climates/atmospheric change
*select an answer for all questions
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