To date the age of Earth,we look for rocks with a high percentage of
A)uranium-235 to lead-207.
B)uranium-238 to lead-206.
C)potassium-40 to argon-40.

Question

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To date the age of Earth, we look for rocks with a high percentage of uranium-238 to lead-206. This method is called Radiometric dating or radioactive dating. Uranium-238 decays into lead-206 through a series of radioactive decay steps. By comparing the ratios of uranium-238 to lead-206 in rocks, scientists can determine the age of the rock. This method is reliable and accurate for dating rocks that are millions or even billions of years old, making it the best choice for dating the age of Earth.

To Date the Age of Earth,we Look for Rocks with a High