7
QuizMultiple Choice

Earth's Interior

Question 7 • Earth and Space A 26-27

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

Answer
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.

Explanation

The lower mantle lies deep inside Earth, beneath the crust and upper mantle, so the enormous weight of the layers above it creates much greater pressure there. Oceanic crust is part of Earth’s outer surface and experiences far less pressure. Therefore, the correct statement is that the lower mantle experiences more pressure than oceanic crust does.

AI-written and checked against the verified answer.

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