Answer:
2. How much is the car?
3. How old is your brother?
4. How long is the flight?
5. How far away is the airport?
6. How was your interview?
7. How much water is in the bottle?
8. How fast is the train?
Answer:
read the back of the book gives great example of what you are asking
If you mean how does use of questions contribute to the development of ideas in general, then it makes the raiders think as they read.
Answer:
The adjective in this sentence is excited.