Answer:The age can be determined by utilizing carbon-14, a radioactive isotope of carbon.
Explanation:
Answer:
For and object to sink, it must have more density than the liquid in which it is placed. For example, if you have a glass of water and a metal spoon, the spoon will sink because it is both heavier than the water, therefore having more density.
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I'm not completely sure but if I did know I would definitely tell u

If the half-life of a sample of a radioactive substance is 30 seconds, how much would be left after 60 seconds? <span>
A. one-fourth</span>