Which unit of geologic time is a subdivision of eons?

• Epoch

• Era

• Period

• Age

Epochs are subdivisions of which unit of geologic time?

• Eon

• Era

• Period

• Age

Tags

NGSS.MS-ESS1-4

How long is a period typically measured in?

• Billions of years

• Millions of years

• Thousands of years

• Hundreds of years

Tags

NGSS.MS-ESS1-4

What is the primary benefit of understanding geologic time divisions?

• To predict future events

• To study Earth's history

• To measure time in centuries

• To analyze human history

Tags

NGSS.MS-ESS1-4

Which of the following is not a unit of geologic time?

• A) Eons

• B) Eras

• C) Decades

• D) Periods

Tags

NGSS.MS-ESS1-4

Which eon is the longest in terms of time span?

• Hadean

• Archean

• Proterozoic

• Phanerozoic

Which eon began 2.5 billion years ago?

• Hadean

• Archean

• Proterozoic

• Phanerozoic

Tags

NGSS.MS-ESS1-4

What can different chemical signatures in rocks help scientists determine?

• The color of the rocks

• The age of the rocks

• The weight of the rocks

• The location of the rocks

Tags

NGSS.MS-PS1-2

Which scientific method is used to create the fossil record?

• Chemical analysis

• Radiometric dating

• Soil sampling

• Mineral extraction

Tags

NGSS.MS-ESS2-3

What process led to the creation of sedimentary rocks in New York during the Paleozoic Era?

• Erosion

• Lithification

• Metamorphism

• Volcanism

Tags

NGSS.MS-ESS1-4