Identify two types of sources used by historians. Describe the difference between those types of sources.

answer; the president uses mass media to gain support for policies;

c. making citizens of the states also citizens of the union. apex g'

i believe the answer is: true

our brain need to reach a certain level of development   before it could interpret and understood sound with high difficulties. to proof this, we just need to pay attention in musical preference between children and adults. it is far less likely that children would enjoy things such as orchestra or rock band as much as adults due to the difference in this ability.