Geologic Dating Quiz: Question Preview (ID: 21761)

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Gaps in rock sequences are called _____________.
a) unconformities
b) idex fossils
c) superposition
d) uniformitariansim

The ___________ is the age of rock or other objects determined by the properties of the atoms that make up the materials
a) relative age
b) fossil age
c) absolute age
d) middle ages

_______ are the remains of species that existed on Earth for relatively short periods of time, were abundant, and were widespread geographically.
a) index fossils
b) half-lives
c) casts
d) unconformities

The relative age of something is __________________.
a) the age, in years of rock and other objects.
b) age cannot be determined because the rock layers are disturbed.
c) older than Mrs. Parkerson.
d) its age in comparison to the age of other things.

Which is the principle of superposition?
a) younger and older things are mixed up in the layers
b) younger things are on the bottom and older things are closer to the top
c) older things are onthe bottom and younger things are near the top
d) none of the above

Suppose you observe several layers of rock that have been exposed by road work. The oldest rock is probably
a) in the bottom layer
b) just below the top layer
c) in the middle layer
d) in the top layer

Calculating the absolute age of a rock by measuring the amounts of parent and daugher materials in a rock and knowing the half-life of the parent materials is called
a) half-live
b) radiometric dating
c) uniformitarianism
d) radioactive decay

The principle that Earth processes occurring today are similar to those that occurred in the past.
a) uniformitarianism
b) catastrophism
c) unconformity
d) princple of superposition

If the half-life of carbon-14 is 5,730 years, then after 5,730 years how much carbon-14 will be left in a sample?
a) none
b) one-fourth
c) one-eighth
d) one-half

The study of fossils and geological dating is part of
a) geology
b) meterology

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