Discuss the impact of the telegraph on American society. How might you use instant communication today?

As the first means of long-distance communication, the telegraph changed the shape of American society. The telegraph expanded the business possibilities and expedited the work of a variety of professions, including bankers, brokers, lawyers, and hotel proprietors.

the american revolution was by the middle and upper class, and the french was by the lower and middle class.

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.