Question

For a living organism, which of the following are true? select all that apply

A the ratio of C-14 to C-12 remains constant.
B the ratio of C-14 to C-12 increases over time.
C the ratio of C-14 to C-12 decreases over time.
D the amount of C-14 is less than the amount of C-12.

Answer 1

C the ratio of C-14 to C-12 decreases over time.

D the amount of C-14 is less than the amount of C-12.

They both are correct so, they both are your answer.

Hope this helps!