Question

Age of a fossil can be estimated by tracing the amount of

• A. normal carbon
• B. radioactive carbon
• C. radioactive oxygen
• D. normal oxygen

Answer 1

The correct option is B

radioactive carbon

The correct option is B.

Explanation of the correct option :

1. Radiocarbon dating is the most common method for determining the age of a fossil.
2. This method involves measuring quantities of carbon-$14$a radioactive carbon isotope.
3. Carbon is$14$is ubiquitous in the environment.

Explanation of the incorrect option :

Option A:

Normal carbon cannot be used in determining the fossil age.

Option C:

It helps track the processes of cerebral blood flow, and glucose metabolism in the central nervous and cardiovascular systems.

Option D:

1. Normal oxygen is used for respiration.
2. It is essential for every living organism to live on earth.
3. We cannot survive without oxygen.

Final answer: The age of a fossil can be estimated by tracking the amount of radioactive carbon.