Geologic History of Earth

Which of the following conclusions can be drawn from the data in this diagram?

• Jellyfish and trilobites never competed for resources.

• Trilobites and dinosaurs did not live at the same time.

• Most mammals are in competition with birds for resources.

• Mammals did not appear until after the dinosaurs went extinct.

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NGSS.MS-LS4-1

The basalt intrusion occurred...

• after the limestone was deposited.

• before the granite was formed.

• before the limestone was deposited.

• before all three layers were formed.

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NGSS.MS-ESS1-4

NGSS.MS-ESS2-2

The illustration here shows rock layers in their original order, along with a fracture in some rock layers caused by an earthquake. Based on the evidence in the illustration, an earthquake occurred -

• before layer W was deposited.

• before layer X was deposited

• after layer Y was deposited.

• after layer Z was deposited.

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NGSS.MS-ESS1-4

NGSS.MS-ESS2-2

When examining rock layers, you will find the oldest layers at the bottom. Newer minerals and rock are piled on top and, over time, this creates distinct rock layers. This is called _______.

• The Law of Superstition

• The Law of Suspicion

• The Law of Horizontality

• The Law of Superposition

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NGSS.MS-ESS1-4

Which best describes a fossil that helps determine the relative age of a rock layer?

• trace fossil
• index fossil
• radioactive fossil
• unconformity fossil

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NGSS.MS-ESS1-4

Which process would be most effective in determining the age of fossils embedded in rock?

• relative dating
• absolute dating
• use of index fossils
• use of core sampling

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NGSS.MS-ESS1-4

Which geologic section, according to the law of superposition, is the youngest?

• M

• A

• I

• D

The Law of Superposition helps scientists to determine what?

• The absolute age of rock layers
• The age of fossils
• The relative age of rock layers
• the super powers of rocks

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NGSS.MS-ESS1-4

Which layer is a result of an igneous intrusion?

• B
• C
• D
• E

The Geologic Time Scale is a record of what _____.

• old geologists

• the known history of rocks and fossils

• a list of every living thing ever

• the notes of geology music

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NGSS.MS-ESS1-4

NGSS.MS-LS4-1