Radiometric dating or radioactive dating is a technique used to date materials such as rocks or carbon, in which trace radioactive impurities were selectively incorporated when they were formed.
The method compares the abundance of a naturally occurring radioactive isotope within the material to the abundance of its decay products, which form at a known constant rate of decay.
i have also been questioned about why humans aren’t evolving further, and I suggested that in fact we are because of our increasing knowledge that has grown significantly in recent times and other small aspects, but anyway, that is a constant argument with family and friends back home, and if you could help with the "why aren't chimps still evolving in to humans" question better than I can, I’d be very appreciative. ”This is, as many of you are no doubt aware, a common objection.
Given the fact that Roger’s friends and family are Christians, I would suggest making an analogy which they can understand from their religious perspective.
" i usually try to explain it that at some point they split off, but i feel like I’m missing that one big nail to close the coffin on that subject for good.From the mapped field relationships, it is a simple matter to work out a geological cross-section and the relative timing of the geologic events.His geological cross-section may look something like Figure 2.Radiometric dating is also used to date archaeological materials, including ancient artifacts.Different methods of radiometric dating vary in the timescale over which they are accurate and the materials to which they can be applied.