Headings break down a passage into sections, subheadings creates smaller sections within a heading to help the reader more understand the passage.
Answer:
If you were to take a glass and put water a little amount in it there would be more room for the sound to vibrate , but if you put more water then there would be less room for it to vibrate creating a higher pitch.
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 can’t just say that and not give any of us what it should be about