While Earth Is Estimated to Be 4

question 102

Multiple Choice

While Earth is estimated to be 4.6 billion years old,the oldest oceanic crust is approximately ____ years old.

• A) 2.5 billion
• B) 6,000
• C) 865 million
• D) 1 billion
• E) 280 million

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Definitions:

Barrel Of Oil

A unit of measure for crude oil and other petroleum products, equivalent to 42 U.S. gallons.

Energy Efficiency

The measure of how well energy is converted into desired outputs, with higher efficiency indicating less energy waste.

U.S. Economy

The economic system of the United States, characterized by a mixed economy that supports free market activities while also having government intervention in certain sectors.

Goods And Services

The products (goods) and activities (services) offered in the market for purchase, representing the output of an economy’s production.