There are many techniques that can contribute to the memorability of a speech, for example stressing the main points and explaining them well, linking the ideas in a logical way and providing a strong conclusion.
One technique that does not support memorability is shouting loudly key words: they might remember you but not the content of the speech.
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Answer:
Propel- to push or drive (someone or something) forward or in a particular direction.
The tone or pitch of the voice ; the modulation of the voice.
Answer: Most likely garbage from trash cans and such
<span>How does the author maintain the lively, active mood of "in Just"? </span><span>
A. by describing the children's voices</span>