ES6 - S6: Chapter 6

The belief that Earth changes only because of sudden events is called __________.

• Catastrophism

• Uniformitarianism

• Gradualism

• Chanchalism

The use or rock layers to determine age

• Absolute dating

• Radioactive decay

• Geologic time

• Relative dating

Radioactive isotopes break down into stable isotopes of other elements this is happens during radioactive decay

• True

• False

The time when eras are divided

• Era

• Epoch

• Eon

• Period

What is the study of past life as rocks or fossils?

• Fossilology

• Archeology

• Paleontology

• Paleobotany

The era that came to an end with the largest mass extinction

• Archean Eon

• Cenozoic

• Mesozoic

• Paleozoic

Scientists can use fossils to learn about what Earth was like in the past.

• True

• False

Fossils provide evidence that life on Earth has changed with time.

• True

• False

The standard method used to divide the Earth's long natural history into manageable parts.

• Geologic time scale

• Index fossil

• Trace fossil

• Extinction

A place where sedimentary rocks are found on top of eroded igneous or metamorphic rocks.

• Disconformity

• Nonconformity

• Angular unconformitry