Life Probably Would Never Have Emerged on Earth If the Ancient

question 39

Multiple Choice

Life probably would never have emerged on Earth if the ancient atmosphere had been the same as the present one in regard to the content of ____.  

• A) carbon dioxide
• B) hydrogen
• C) oxygen
• D) nitrogen
• E) carbon monoxide

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Definitions:

Production Possibilities Curve

A graphical representation showing the maximum number of goods or services that can be produced using limited resources efficiently.

Full Employment

Refers to a situation in the economy where all available labor resources are being used in the most efficient way possible.

Unemployment Rate

The proportion of the overall workforce that is not employed but is actively looking for work and ready to take on a job.

Economic Growth

An increase in a country's capacity to produce goods and services, reflected over time in a rise in the national income and standard of living.