Given the age of the meteorite is 4.5 billion years old with 78 atoms of lead-206 the answer should be B. 156. The half-life of uranium-238 in order to decay into lead-206 is 4.46 billion years, which means that the original number of atoms is 156.
What are the pairs i need them before i can try to answer
Type two is where their are to much insulin but not enough glucose that's all I can say sorry
