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Interpreting the past radiocarbon dating

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Take a quantity of uranium-238 and in 4.5 billion years half of it will have turned into lead-206.

When molten rock hardens into a solid, the uranium-238 within it begins to decay.

By measuring the ratio of carbon-14 in a younger fossil, scientists can estimate its age.

These reasons will work from the general to the specific.because science is about refining our understanding of the truth.The Theory of Evolution is strong enough that nearly half these examples could be disproved and the evidence would still be fairly overwhelming.All life on Earth uses a three-letter code to produce 20 standard amino acids.Researchers have artificially expanded the genetic code to produce additional amino acids as tools, but all natural life use the same 20 amino acids from our common descent.I’ve used links to articles in Wikipedia as much as possible because Wiki articles are refined over time with our understanding of the subjectmatter and are less subject to link-rot.