Geology Quiz

Which inference about rock units D, E, and H can best be supported by evidence in the cross section?

• They contain mostly sand-sized sediment.

• They contain both land and marine fossils.

• They were altered by contact metamorphism.

• They were deposited as horizontal layers and were later tilted.

Tags

NGSS.MS-ESS1-4

NGSS.MS-ESS2-2

NGSS.MS-ESS2-3

The age of which index fossil could be determined by using carbon-14?

• Trilobite

• Dinosaur

• Mammoth

• Fern

How many half-lives have passed if a sample contains 25% of its original carbon-14?

• 1 half-life

• 2 half-lives

• 3 half-lives

• 4 half-lives

Which disintegration product is represented on the graph?

• 206Pb

• 87Sr

• 40Ar

• 14N

Tags

NGSS.HS-PS1-8

Radioactive carbon-14 is often useful in determining the absolute age of geologic samples because radioactive isotopes

• decay at a regular rate

• become less stable during decay

• remain unchanged over time

• stabilize after four half-lives

Tags

NGSS.HS-PS1-8

The sequence of rock layers in the cross section provides evidence that the Muave formation is

• younger than the Temple Butte, but older than the Bright Angel

• younger than both the Temple Butte and the Bright Angel

• older than the Temple Butte, but younger than the Bright Angel

• older than both the Temple Butte and the Bright Angel

Tags

NGSS.MS-ESS1-4

Which column best represents the relative lengths of time of the major intervals of geologic history?

• Column A

• Column B

• Column C

• Column D

Tags

NGSS.MS-ESS1-4

The cross section below represents four different rock units. The symbol for contact metamorphism has been omitted from the cross section. The sequence below represents the relative ages of the rock units from oldest to youngest: limestone → granite → shale → sandstone. Which cross section below represents where the symbol for contact metamorphism would be located, based on the relative age sequence?

• Cross section A

• Cross section B

• Cross section C

• Cross section D

Tags

NGSS.MS-ESS1-4

The timeline below represents the entire geologic history of Earth. The lettered dots on the timeline represent events in Earth's history. Which lettered dot best indicates the geologic time when humans first appeared on Earth?

• A

• B

• C

• D

Tags

NGSS.MS-ESS1-4

NGSS.MS-LS4-1

Using radioactive dating methods and mathematical inferences, scientists have estimated the date of Earth's formation to be approximately

• 1.1 × 10^6 years ago

• 2.4 × 10^6 years ago

• 3.3 × 10^9 years ago

• 4.6 × 10^9 years ago

Tags

NGSS.MS-ESS1-4