The correct answer is B. the radioactive decay of uranium to lead. This method, known as uranium-lead dating, is one of the oldest and most reliable radiometric dating methods used to determine the age of the Earth and other geological materials, allowing scientists to estimate that Earth is at least 4.3 billion years old.
which allowed scientist to determine that earth was at least 4.3 billion years old.
A. the electric conductivity of uranium ions
B. the radioactive decay of uranium to lead
C. chemical reactively of zircon ions
D. magnetic field surrounding zircon
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