Physics, 27.01.2021 14:00, juniorvalencia4

1) Archeologists have found fossil remains of some of the first land animals in layer C. It has been suggested that C-14 be used to data the
fossils. Some archeologists have objected and suggested that it would
be best to use U-238 or Pb-206 to date the rock layer instead. Why
would they make such a suggestion?
A)
Rocks do not contain any elemental carbon for
radiometric dating purposes.
B)
Carbon-14 is only found in living things; it can only
be used to date remains.
C-14 has a very short half-life, 5700 years, and based
C) on geologic history, layer C may be several million
years old.
C-14 has such a long half-Life, 570000 million years,
D) it would be more appropriate to use a radioactive
element with a shorter half-life.

Answers: 3

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1) Archeologists have found fossil remains of some of the first land animals in layer C. It has bee...