Holt Modern Biology 1st Edition by John Postlethwait ,Janet Hopson

Exercise 42

INTERPRETING GRAPHICS: The graph below shows the decay of a radioactive isotope over time. Use the graph to answer the question that follows.

If the half-life of carbon-14 is 5,730 years, how many years would it take for
of the original amount of carbon-14 in a sample to decay?
F) 5,014 years
G) 11,460 years
H) 17,190 years
J) 22,920 years