Absolute Ages of Rocks Answers

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1
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While examining layers of rock, a geologist states, “The sandstone is older than the limestone.” What has the geologist determined?

A
the absolute ages of the rock layers
B
the relative ages of the rock layers
C
the half-lives of elements within the rock layers
D
the specific-lives of elements within the rock layers
2
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The clock on a rock is set as soon as it begins to erode.

A
T
B
F
3

Please select the word from the list that best fits the definition

A
carbonaceous film
B
cast
C
principle of superposition
D
radiometric dating
E
beta decay
F
half-life
G
index fossils
H
mold
I
uniformitarianism
J
radioactive decay
K
relative dating
L
unconformities
4

Radiocarbon dating is used to measure the age of fossils.

A
T
B
F
5

Please select the word from the list that best fits the definition

A
remains
B
fossil
C
mold
D
hard
E
missing layer
F
trace
G
radioactive decay
H
carbon-14
6

When radiometric dating is done on a rock sample, the rock’s

A
comparative age
B
relative age
C
absolute age
D
sequential age
7

Please select the word from the list that best fits the definition

A
remains
B
fossil
C
mold
D
hard
E
missing layer
F
trace
G
radioactive decay
H
carbon-14
8

Absolute age examines the position of rocks in a sequence.

A
T
B
F
9

With ____ dating, a rock's exact age can be determined, whereas with ____ dating, a rock's age is compared to the ages of other rocks.

A
absolute, relative
B
relative, absolute
C
true, absolute
D
relative, approximate
10

Isotopes of the same element will have a different number of neutrons, but the same number of protons.

A
T
B
F

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