when radioactive isotopes are used to determine the exact age of a fossil, this is referred to as--\n○ the…

when radioactive isotopes are used to determine the exact age of a fossil, this is referred to as--\n○ the law of superposition\n○ absolute dating\n○ relative dating\n○ age determination
Answer
Answer:
B. absolute dating
Brief Explanation:
The Law of Superposition is about rock - layer order. Relative dating gives age in comparison. Absolute dating uses radioactive isotopes for exact age. Age determination is a general term. Here, using radioactive isotopes for exact age is absolute dating.