Unit 7: Earth's Geologic History Review

Thin layers of volcanic ash act as excellent time markers in the correlation of bedrock because volcanic ash

• is easily eroded and lasts only a short time on Earth's surface

• stays in the atmosphere for millions of years

• is deposited over millions of years

• falls to Earth over a large area in a short period of time

Tags

NGSS.MS-ESS1-4

What are the two characteristics necessary for a fossil to be classified as an index fossil?

• lived for a short amount of time and was widespread

• lived for a long amount of time and was widespread

• lived for a short amount of time in a small area

• lived for a long amount of time in a small area

During which geologic epoch does the New York State rock record consist of weakly consolidated to unconsolidated sediments?

• Early Permian

• Early Jurassic

• Late Cretaceous

• Pliocene

Tags

NGSS.MS-ESS1-4

Widespread layers of volcanic ash deposits are useful to geologists because the deposits

• serve as time markers

• contain index fossils

• are used for carbon-14 dating

• show a time gap in the rock record

Tags

NGSS.MS-ESS1-4

Which fossil could be found in the same rock as fossils of the first corals?

• Ctenocrinus

• Maclurites

• Coelophysis

• Bothriolepis

According to fossil evidence, which sequence shows the order in which these four life-forms first appeared on Earth?

• reptiles, amphibians, insects, fish

• insects, fish, reptiles, amphibians

• amphibians, reptiles, fish, insects

• fish, insects, amphibians, reptiles

Tags

NGSS.MS-LS4-1

The division of Earth's geologic history into units of time called eons, eras, periods, and epochs is based on

• absolute dating techniques

• climatic changes

• fossil evidence

• seismic data

Tags

NGSS.MS-ESS1-4

NGSS.MS-LS4-1

What is the estimated age of Earth?

• 4.6 × 10^6 years

• 4.6 × 10^8 years

• 4.6 x 10^7 years

• 4.6 × 10^9 years

Tags

NGSS.MS-ESS1-4

During which time period in Earth's geologic history did the initial opening of the Atlantic Ocean occur?

• Cambrian

• Paleogene

• Jurassic

• Permian

Tags

NGSS.MS-ESS2-3

Which of the following fossils can be found in the Devonian time period?

• Elliptocephala

• Tetragraptus

• Lichenaria

• Phacops