The Thickness of Earth's Crust

question 74

Multiple Choice

The thickness of Earth's crust

• A)varies from 10 km under the continents to 60 km under the oceans.
• B)on average is about 10 km.
• C)on average is about 60 km.
• D)varies from 10 km under the oceans to 60 km under the continents.

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Definitions:

Cross-Sectional Area

The area of a particular section of an object or substance that has been cut across its width, used to determine properties like resistance and strength.

Aorta

The body's biggest artery starts from the heart's left ventricle and stretches down to the abdomen, dividing into smaller arteries there.

Arterioles

Small arteries that lead into capillary beds, playing a key role in regulating blood flow and blood pressure.

Compliance

The ability of an organ or vessel to distend in response to applied pressure, often used to describe the behavior of blood vessels or lung tissue.