How do scientists use radioactive dating
Many rocks and organisms contain radioactive isotopes, such as U-235 and C-14.These radioactive isotopes are unstable, decaying over time at a predictable rate.This technique is not restricted to bones; it can also be used on cloth, wood and plant fibers.Carbon-14 dating has been used successfully on the Dead Sea Scrolls, Minoan ruins and tombs of the pharaohs among other things. The half-life of carbon-14 is approximately 5,730 years. dinosaurs the evolution alleges lived millions of years ago.
Scientists find the ratio of parent isotope to daughter isotope.
These are the surfaces that we can get absolute ages for.
For the others, one can only use relative age dating (such as counting craters) in order to estimate the age of the surface and the history of the surface.
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