Why are secondary sources less reliable? Some secondary sources do not even speak to primary sources, rather they speak
to other secondary sources to obtain their information?
What kind of problem can this create?

Secondary sources are less reliable as they can have many edits and you would never know as you would get it at the third point.

answer: choose the second bullet point. it is the easiest to put together an answer to the question.

explanation:

for the united states of america, 1945 to 1964 was a time of high economic growth and general prosperity. it was also a time of confrontation as the capitalist united states and its allies politically opposed the soviet union and other communist countries; the cold war had begun.

explanation: