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18-10-2022
Biology

Answered

The table below shows the half-life of an element:

Half-Life DataElement Half-Life
Carbon-14 5,730 years

Scientists have found that the carbon-14 content of an unknown prehistoric sample was reduced to one-half. What best describes the identity of the sample?

An organism that died more than 10,000 years ago
A rock that formed more than 10,000 years ago
An organism that died 5,730 years ago
A rock that formed 5,730 years ago

Answer :

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