A challenge that Mexican citizens living in areas that were part of the Mexican Cession faced was that

A challenge that Mexican citizens living in areas that were part of Mexican cession faced was that: They were separated from while settlers. Their families were forced into slavery. They did not know how to farm.

Explanation:

maybe you should ask google for the answer for the question you're looking for

radioactive dating, also known as  radioisotope dating  is a process that in  estimating the approximate  age  of  rocks. these data can be analyzed from  the studies dealing with the  decay of the radioactive elements that are present in these rocks. in nature, there are a few types of materials or atoms which are quite unstable and they spontaneously decay or breakdown to form other kinds of atoms.