Answer to Question #175969 in General Chemistry for Kavita

Question #175969

How do fossils indicate that the earth might be very old


1
Expert's answer
2021-03-29T06:01:57-0400

To establish the age of a fossil, researchers use some type of clock to determine the date it was formed. Geologists commonly use radiometric dating methods, based on the natural radioactive decay of certain elements such as potassium and carbon, as reliable clocks to date ancient events.The oldest known are about 3.5 billion years old. This is an indication of how old the Earth is.


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