AnswersBiology VIA Fall 2026 Lstrangesdale.orgGeologic Time

1.5 Earth's Interior Answers

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Which statement describes a difference between the lower mantle and oceanic crust?

A
The lower mantle is closer to Earth’s surface than oceanic crust is.
B
The lower mantle is found closer to sea level than oceanic crust is.
C
The lower mantle experiences more pressure than oceanic crust does.
D
The lower mantle has a more tarry consistency than oceanic crust does.
2
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Study the diagram showing the range of temperature in the Earth’s layers.

Question illustration
A
The outer core is the hottest region.
B
The mantle is hotter than the outer core.
C
The continental crust is the coolest region.
D
The inner core is cooler than the lithosphere.
3

Study the table about Earth’s interior.If silicic rock is found in a core sample, what evidence does this provide about the rock’s location?

Question illustration
A
Its location is likely underneath an ocean or a mountain.
B
Its location is likely denser than Earth’s lithosphere.
C
Its location likely has a consistency that changes from solid to liquid.
D
Its location likely contributes to the creation of Earth’s magnetic field.
4

Study the graph about seismic waves.What does the graph show?

Question illustration
A
The S and P waves travel the same distance through Earth’s crust in the same amount of time.
B
The P wave travels through Earth’s crust more quickly than the S wave travels.
C
It takes the P wave 18 minutes to travel 6,000 km through Earth’s crust.
D
It takes the S wave 11 minutes to travel 8,000 km through Earth’s crust.
5

Study the image of Earth’s layers.

Question illustration
A
Earth’s mantle is thinner than its oceanic crust.
B
Earth’s outer core is thicker than its mantle.
C
Earth’s continental crust is thicker than its lithosphere.
D
Earth’s lithosphere is thinner than its asthenosphere.
6

Study the table about Earth’s interior.Which conclusion is supported by information in the table?

Question illustration
A
The mantle is thinner than the crust.
B
The core is the thickest of Earth’s layers.
C
The inner core is thicker than the outer core.
D
The mantle is the thinnest of Earth’s layers.
7

The composition of rocks affects their densities and the densities of Earth’s layers. Use what you have learned and the information in the table to answer the question.In which order would these rocks and minerals be found in the layers of Earth from the crust to the lower mantle?

Question illustration
A
eclogite, perovskite, rhyolite, stishovite
B
stishovite, rhyolite, perovskite, eclogite
C
stishovite, perovskite, eclogite, rhyolite
D
rhyolite, eclogite, perovskite, stishovite
8

Which statement describes a characteristic of the asthenosphere?

A
Temperatures are cool.
B
Consistency is solid.
C
Thickness is less than crust.
D
Pressure is higher than crust.
9

Why is Earth's outer core hotter than Earth’s oceanic crust?

A
Earth’s oceanic crust is denser than Earth’s outer core is.
B
Earth’s oceanic crust has lava flowing from the mantle.
C
Earth’s outer core has a composition of solid iron and nickel.
D
Earth’s outer core is deeper within Earth than oceanic crust is.
10

Study the diagram about the varying pressures of Earth’s Layers.

Question illustration
A
110 GPa
B
220 GPa
C
305 GPa
D
360 GPa

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