Question

Fossils are now date by

• A. Stratigraphic period
• B. Studying their association with other mammals
• C. Amount of calcium present as residue
• D. Radioactive carbon content

Answer 1

The correct option is D Radioactive carbon content

Fossils are used to deduce the evolutionary history and relationship of organisms. For this process, fossil dating is used. It is used to determine the age of fossils and also compare it to other similar rocks.

C - 14 isotope of carbon is used for dating of fossil fuels. In this method, the c since the content of carbon - 14 isotopes is measured in the rock species Some amount of carbon - 14 gets converted to carbon - 12 that shows how long the material has died.

So, option D "Radioactive carbon content" is the correct answer.