answer: historical reachers use scrap books, speeches, journals, letters and diaries, photograges, audio recordings, video recordings, films, archives and manuscript material, published books, newspapers and magazine clippings published at the time.
Example: Speeches: mlk’s speech. Newspaper: news in the newspaper about Rosa parks. (Thats only two but you see where I’m going)
You could google this, but the ratio between frequencies of one octave to the next is 2:1
Answer: who is in control brainpower by giving me point on brainlist?
Explanation:
