Fossils Quiz

Scientists are able to directly date most fossils using a variety of techniques.

• True

• False

The most precise type of dating used for determining a fossil's age is .

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Calculating the age of igneous rock is part of the process used in .

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Determining the approximate order in which rock layers were deposited is an important part of -age dating.

The ratio of unstable isotopes to stable isotopes is part of -age dating.

Relative-age dating is especially useful in studying disturbed rock layers.

• True

• False

An understanding in relative-age dating is that one rock layer is either older or younger than a nearby rock layer.

• True

• False

An approximate age of a species is determined using -age dating.

Geologic time scales divide Earth’s history into different units of time.

• True

• False

In relative-age dating, the age of species found in sedimentary rock layers is determined by the age of igneous rock.