The diagram below represents 3 geologic columns found in widely
separtated outcrops of sedimentary rock. Each rock layer in the columns represents
a different geologic time interval, ranging from 1 (the oldest), 2, 3, to 4
(the youngest).
14. Which of the following can also be used to calculate the
age of fossils?
a. DNA sequencing.
b. Half-life calculations of chemical
isotopes.
c. Acid/base neutralization.
d. Study of the sediment types
forming the fossils.
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Slichter