WBCS.LIVE practice question

Which specific radioactive isotope is universally used for determining the age of ancient organic fossils?

Solve this multiple-choice question and check the correct answer with its explanation below.

Answer options

  1. Uranium-235
  2. Carbon-14
  3. Cobalt-60
  4. Iodine-131

Correct answer and explanation

Correct answer: Carbon-14

Explanation: āœ… Correct Answer: B) Carbon-14 šŸ“š Explanation: Radiocarbon dating is a highly accurate scientific method used to determine the age of archaeological artifacts and fossils of biological origin. It relies strictly on measuring the remaining concentration of Carbon-14, a radioactive isotope that slowly decays at a known, constant rate after the organism dies. This method is effective for dating objects up to 50,000 years old.