Much or many?

Vprašanje 1
Complete with much or many.
1. How petrol is in the car?
2. How birds do you see?
3. I don't have money left.
4. Not students passed the exam.
5. How people died in that building?
6. Why is there so smoke in the kitchen?
7. Does this computer use electricity?
8. I can see good things in our future.