Question

Carbon-14 is the typical radioisotope used to date materials; however it has limitation to 40000 years a scientist who wants to date materials older than 40000 years would most likely use

A. Uranium- 238
B. Rubidium- 91
C. Iodine- 131
D. Cobalt- 60

Answer 1

The answer is Uranium-238

Step-by-step explanation:

Answer 2

The answer would be Uranium-238

Step-by-step explanation:

It's the only one that lasts longer than 40,000 years