Carbon-14 dating, a type of radiometric dating, uses ______ as a type of clock to measure the age of fossils.Multiple choice question.isotopesprotonselectronshydrogen atoms

For which could carbon-14 dating be used?Multiple choice question.A)a marble column from ancient ChinaB)dinosaur fossils that are millions of years oldC)rocks that are billions of years oldD)a fragment of wood from a Colonial house

Carbon-14 is an example of ________ dating.A.incrementalB.varveC.radioactiveD.correlative

In radiometric dating, the known ______ of an isotope and the amount of isotope left in a fossil can be used to estimate when the fossil formed.Multiple choice question.natural sourcefree energyradiushalf-life

When an organism dies, the intake of carbon atoms stops, and as the radioactive isotope carbon-14 decays over time into the more stable atom ______, the amount of the remaining ______ can be used to estimate the age of a fossil.Multiple choice question.carbon-12; carbon-14carbon-12; carbon-12

What elements’ isotopes are used to estimate how old something is? Why do scientists use morethan one type? (Be specific, it is not just to get repeated results)3. Pretend you are a scientist and have a tool like the one on Dating Game tab:a. How do you decide which to use: Carbon-14 or Uranium-238?b. How does the percentage help you estimate the age?c. If you can’t get a reading on one object like the fish fossil , what else canyou try? Determine the approximate age of the fish fossil and explain what you did toestimate the fossil age.4. If you were a forensic scientist and found a dead buried body, could you use one of the isotopesin the simulation to figure out how long ago the person died? Explain.5. What type of reaction do Carbon -14 and Uranium- 238 undergo? Explain how you figured thisout and write the reaction for each.