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Phantasy [73]
3 years ago
7

During the twentieth century,what was added to the relative time scale

Biology
1 answer:
liubo4ka [24]3 years ago
5 0
<span>During the twentieth century, absolute date was added to the relative time scale.  </span>Geologic time scale uses both relative and absolute dating techniques.  <span>Soon after the discovery of radioactivity, geologists used radioactive isotope decay to develop a method for determining absolute ages of rocks</span>
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