7. The Formation of the Present-Day Earth

Which tool was used to determine Earth's age as approximately 4.57 billion years?

A. Potassium-argon dating
B. Isotopic dating
C. Relative dating
D. Magnetic field dating



Answer :

Final answer:

Radioactive dating methods are crucial in determining the age of the Earth, aiding in understanding Earth's history and development.


Explanation:

Radioactive dating techniques have been instrumental in determining the approximate age of the Earth. The age of the Earth, currently estimated at around 4.54 billion years, was first calculated through the analysis of lead isotopes in meteorites. This method helps scientists establish a timeline of Earth's geological development.


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