Multiple choice general knowledge science & technology

Which discovery made it possible to accurately calculate the Earth's age

  1. Fossils

  2. Radoactivity

  3. Carbon Dating

  4. Continental drift
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The discovery of radioactivity and the development of radiometric dating techniques allowed scientists to accurately calculate Earth's age by measuring radioactive decay in rocks. While carbon dating works for organic materials, uranium-lead dating of meteorites and rocks established Earth's age at about 4.54 billion years.

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