Early in our relationship, Ade gave some thought to the question of whether I would ever be willing to marry a non-Mormon. You guys are looking into this wayyyyyyy too much. An important is doing this together.
What is radioactivity and how are radioactive isotopes used in radiometric dating - How do we determine the age of a rock?
30.12.2017 at 11:19 5
Radiation and Radioactive Decay