Chapter 8 Exam: Time and Geology

Relative time refers to the time sequence in which events take place rather than the number of years involved. True or False?

• True

• False

Tags

NGSS.MS-ESS1-4

Uniformitarianism reflects the belief among geologists that the Earth remains uniform and unchanging through time.

• True

• False

The principle of superposition states that within a sequence of undisturbed sedimentary rocks, the layers get younger going from bottom to top.

• True

• False

Tags

NGSS.MS-ESS1-4

The principle of crosscutting relationships states that a disrupted pattern is older than the cause of disruption.

• True

• False

Tags

NGSS.MS-ESS1-4

The principle of original horizontality states that beds of sediment are nearly always deposited as nearly horizontal layers.

• True

• False

In an unconformity the contact represents a gap in the geologic record.

• True

• False

Tags

NGSS.MS-ESS1-4

Under some circumstances, correlation between two regions can be made by assuming that similar rock types in the two regions formed at the same time.

• True

• False

Tags

NGSS.MS-ESS1-4

An index fossil is a fossil from a very short-lived, geographically widespread species known to exist during a specific interval of geologic time.

• True

• False

Earth is between 1 and 2 billion years old.

• True

• False

Tags

NGSS.MS-ESS1-4

Geologists use fossils in sedimentary rocks to assign their correct place in geologic history.

• True

• False

Tags

NGSS.MS-ESS1-4

NGSS.MS-LS4-1