The answer is one mystery that still remains unsolved is why we yawn.
and another theory is that when you yawn it sends oxygen to the brain causing your body to be able to stay awake, hence when you are tired and need to stay awake you yawn a lot.
Answer:
introduction, a thesis statement, body the conclusion
Explanation:
a topic sentence and then supports that point with specific ideas and evidence. The first paragraph should follow from the thesis statement,
Answer:
B. By revealing just enough information that makes the audience curious
Explanation:
Out of curiosity the audience make a serious, urgent, or heartfelt request which is simple the speaker best way of appealing to audience