The Thickness of Earth's Crust Ranges from

question 103

Multiple Choice

The thickness of Earth's crust ranges from

• A) 5 km to 60 km (3 mi. to 37 mi.).
• B) 70 km to 250 km (43 mi. to 155 mi.).
• C) the surface to an unknown depth.
• D) the surface down to 2900 km (1800 mi.).

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Definitions:

Private Enterprise System

An economic system where private individuals or businesses own capital goods and the production of goods and services is based on supply and demand in the general market.

Intellectual Inputs

Contributions of knowledge, ideas, expertise, and intellectual property to a project, organization, or production process.

Physical Labor

Physical labor refers to work that requires physical effort or manual tasks as opposed to mental work.

Industrial Revolution

A period of major industrialization from the late 18th to early 19th centuries that transformed primarily agrarian, rural societies into industrialized, urban ones.