Book titles would be the correct answer
<span>the theme in A cub pilot would in my opinion be: To grow up, a young person has to learn from experience. its a 50/50 chance i read that short story a long time ago</span>
I think it might be sentence 4, since it is not relevant to the wooly mammoth's disappearance.
Answer:
the answer is echo because it have no voice but wind is it's source of it's life