Question

Certain types of atoms break down at a known rate. Scientists can measure the amounts of the broken down products present in a sample to calculate its age.

What is this technique called?

A.
speciation

B.
the fossil record

C.
radiometric dating

D.
natural selection

Answer 1

The only answer i can think of is c

Answer 2

Speciation is how new organisms arise. The fossil record's name is self-explanatory: a record of the fossil found. Natural selection is when traits that are better for survival are passed down to the next generation. Therefore, C) radiometric dating is the answer.