How Old Is Our Planet Earth

question 7

Multiple Choice

How old is our planet Earth?

• A)4.6 thousand years old
• B)4.6 million years old
• C)3.5 billion years old
• D)4.6 billion years old

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Definitions:

Total Utility

The total satisfaction or pleasure a person derives from consuming a specific quantity of goods or services.

Risk-Averse

Describes individuals who choose to reduce risk when that reduction leaves the expected value of their income or wealth unchanged.

Income Curve

The income curve, in economics, typically relates to a graphical representation showing how a change in income affects consumption or purchasing patterns of individuals or households.

Expected Value

A statistical concept that calculates the average result of a random event when the process is repeated many times.