1. correct
2. incorrect; it should be "Yes, I'll be glad to help you."
3. correct
4. incorrect; it should be "I hope, Betty and Don, that you will come back and see us again."
So the reader can understand what is going on in greater detail so they can imagine what is going on in their heads. They use scientific language to show the subject of the book, science and to give the reader that same feeling
metaphors compare two concepts that at first seem unrelated
Explanation:
2 it's used in comics or cartoons to make it more interesting and more realistic and to make reader get feel of action
Corn is an ideal crop which has helped advance human societies