Radiocarbon dating is used to estimate the ages of

Correct option is B

Ans. (b)
Sol. Radiocarbon dating (also known as carbon-14 dating) is a technique used to determine the age of organic materials, such as fossils, bones, wood, and plant fibers. It measures the amount of radioactive carbon-14 remaining in a sample. This method is effective for specimens up to about 50,000 years old and is widely used in archaeology and paleontology.
Explanation of each option:
· (a) Babies – Incorrect. Radiocarbon dating is not used for living beings.
· (b) Fossils – ✅ Correct. Organic remains like fossils are dated using this method.
· (c) Rocks – Incorrect. Rocks are dated using other methods like uranium-lead or potassium-argon dating.
· (d) Ancient buildings – Incorrect. While building materials may be tested, only organic components (e.g., wood) are dated using carbon-14.