Question

Why are some isotopes used as tracers?

A. They leave visible trails.
B. They bind with all molecules.
C. They decay at a predictable rate.
D. They are uniquely identifiable like fingerprints.

Answer 1

Answer is C.

They decay at a predictable rate. IE carbon 14 decay to carbon 12 to understand how long ago something was alive.wer:

Step-by-step explanation:

Answer 2

the correct answer is D. They are uniquely identifiable like fingerprints.

~batmans wife dun dun dun....