The Half-Life of Carbon-14 Is About 5,730 Years

question 29

Multiple Choice

The half-life of carbon-14 is about 5,730 years.If an ancient cave painting was found to have about 25% of the carbon-14 of a now-living object,about how old is the cave painting?

• A) 5,730 years
• B) 11,500 years
• C) 17,200 years
• D) Not enough information is given to determine the age.

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Definitions:

Permanent Structures

Buildings or constructions meant to be durable and to exist for a long period without significant alteration.

Ownership Interest

The legal right or claim a person has in a property or business, usually expressed as a percentage.

Estate

An interest in land. Property owned by a decedent at the time of his death.

Fee Simple Absolute

The highest form of land ownership, which gives the owner the right to possess and use the land for an unlimited period of time, subject only to governmental or private restrictions, and unconditional power to dispose of the property during his lifetime or upon his death.