What rhetorical techniques does Roosevelt use in the excerpt from the speech you read and listened to? What effects do the techniques have? I found the answer

Roosevelt uses parallelism when he discusses the material problems the nation faces. The way the sentences connect together mimics the problems the nation is facing- they are all piling up on one another. to the listener, the problems are emphasized by the repition of words. The parallel sentence structure is an effective way to present these ideas.

Incomplete question. I inferred you want an explanation of the term parallelism.

Explanation:

The term parallelism is a literary device used in speech or literature. It involves the use of words or phrases with a close grammatical structure. It means the words or phrases are used repeatedly in other to create a clearer understanding of what is been said.

For example, Roosevelt used the expression "It can be helped by" repeatedly in the excerpt below,

"It [a better use of the Nation’s natural resources] can be helped by insistence that  the Federal, State, and local governments act forthwith on the demand that their  cost be drastically reduced. It can be helped by the unifying of relief activities  which today are often scattered, uneconomical, and unequal. It can be helped by  national planning for and supervision of all forms of transportation and of  communications and other utilities which have a definitely public character."

By so doing he was able to make the problems stand out.

answer: life tends to copy things that already exists rather than taking old ides and making it into something new

explanation:

about the letter or who wrote the letter