The Half-Life of Carbon-14 Is About 6000 Years

question 65

Multiple Choice

The half-life of carbon-14 is about 6000 years.Assume that a sample of charcoal formed by burning of living wood 15,000 years ago.How much of the original carbon-14 would remain today?

• A)more than one-half
• B)between one-fourth and one-eighth
• C)between one-half and one-fourth
• D)between one-half and one-third

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Definitions:

Spinal Cord

A major part of the central nervous system which extends from the base of the brain through the vertebral canal and is responsible for transmitting nerve signals between the brain and the rest of the body.

Tolerance

The process by which the body becomes less responsive to a substance (such as a drug) or a stimulus after repeated exposure.

Resistance

The refusal to accept or comply with something; the attempt to prevent something by action or argument.

Impaired Memory

A reduction in the ability to remember information or events, which can be temporary or permanent.