Multiple Choice
Which of the following radioactive substances is commonly used to date very ancient (older than the Cenozoic) fossils and events in the history of life?
A) Carbon-14
B) Carbon-12
C) Nitrogen-14
D) Potassium-40
E) Argon-40
Correct Answer:
Verified
Correct Answer:
Verified
Related Questions
Q181: The period during which most of Earth's
Q182: If the Earth's mantle had somewhat less
Q183: The primary reason that dragonflies grew so
Q184: The _ of an isotope is the
Q185: The mass extinction responsible for the demise
Q187: In undisturbed sedimentary rock, strata from the
Q188: The first plants to produce seeds appeared
Q189: Which of the following was not known
Q190: The half-life of <sup>14</sup>C, a radioactive element
Q191: Giant insects have not appeared in the