Carbon-14 (¹⁴C) Has a Half-Life of Approximately 6000 Years

question 127

Multiple Choice

Carbon-14 (¹⁴C) has a half-life of approximately 6000 years. A researcher investigating a piece of ancient wood determines that there is only 1/4 as much ¹⁴C present in the wood now as there was when the tree that the wood came from was alive. How old is the piece of wood?

• A) 12,000 years
• B) The age cannot be determined from this information.
• C) 9000 years
• D) 24,000 years

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Definitions:

Interested

Having an attention or curiosity to learn more about something or to be engaged in a particular activity or subject.

Anal Stage

A phase in Freudian psychosexual development when children focus on bowel control and elimination, typically around ages 2 to 3.

Latency Stage

A period in Freudian psychosexual development occurring between ages six and puberty, where sexual urges and behaviors are suppressed while cognitive and social skills develop.

Phallic Stage

A phase in Freudian psychology where a child's focus of libido is concentrated in the genital area.