Over time, the amounts of Pb-206 and Pb-207 will change in some samples, as these isotopes are decay end-products of uranium decay (U-238 decays to Pb-206, and U-235 decays to Pb-207).This causes the data points to separate from each other.Hon, there are no laws saying either of those things. Your parents can quite legally ground you until you're 18.
The oldest rocks which have been found so far (on the Earth) date to about 3.8 to 3.9 billion years ago (by several radiometric dating methods).it has been almost 3 weeks now, and my parents hav claimed ill b grounded for over 4 months. Parents are required to give you shelter, food, water, weather appropriate clothing, appropriate medical care, and access to education as required by your state, and little else.this is not going well at all with wanting to see my boyfriend. If they say no contact, that's exactly what it means - no contact. They can legally keep you grounded until you are 18.Sex is legally prohibited, but then so is pot and alcohol. A2A, I'm going to somewhat repeat what everyone else said and say yes it's okay as long as it's not breaking any laws.