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By far the most common is radioactive dating which involves checking the amount of a given radioactive isotope in a given sample is left over (and calculating from the half-life [the time it takes for a radioactive element/isotope to decay to half the original amount]).
Another one would likely be tree-ring dating which only determines the age of trees by how many rings it has.
What else can I help you with?
Are there different types of fish gills?
yes there are different types of gills in different types of fishes.
What are the different products we get from different types of trees?
different products we get from different types of trees
Information about different types of houses?
different types
What are the different types of mainframe systems?
what are some different types of mainframes
How many different types of sharks are there in the Farallons?
There are 15 types of different types of sharks.
Different types of travel writing?
different types of ali
What are the different types of arithmetic operators?
+,-,*,/,% are the different types of operators.
Is there different types of jewdaisim?
different types off jewdaisium
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what are the different types of surface mining
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what are the different types of filters in access
What are the different types of PLDs?
The different types of PLDs areROMPLAPALSPLDCPLDFPGA
What are the different types of watermelons?
watermelon is a type of melon, there are no different types of watermelons, but there are different types of melons, such as the honeydew melon
