For each of the events below, choose the appropriate isotope to use for dating t

Question

For each of the events below, choose the appropriate isotope to use for dating the event. You will make use of the table of half-lives of isotopes and the table of some approximate dates relevant to our species.
carbon-14 strontium-90 radon-222 uranium-238 none invention of agriculture
carbon-14 strontium-90 radon-222 uranium-238 none the big bang
carbon-14 strontium-90 radon-222 uranium-238 none first chemical evidence of life
carbon-14 strontium-90 radon-222 uranium-238 none advent of the industrial age

Explanation / Answer

carbon-14 strontium-90 radon-222 uranium-238 none the big bang

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