Question

Radiocarbon dating ______________ a. Works only on organic material. B. Depends on a half life of 5,730 years. C. Is accurate to 70,000 years. D. All of the above.

Answer 1

Answer:

D

Explanation:

Carbon 14 (C14) exists in the atmosphere in constant proportion  

C14 decays to carbon 12 at a constant rate when the organism dies

Every 5,730 years the amount of C14 is reduced by 50% half-life

Accurate to 70,000 years

Answer 2

The answer is C. It can be used on objects as old as about 62,000-70,000 years old