Warm your brain up!

2. Not regular or consistent; different from what is ordinarily expected; undependable.
5. Threatening, suggesting sth bad to happen.
8. The mixture of different sounds that are heard in a particular place.
9. The area that a person or group of people in authority has responsibility for or control over.
11. To formally stop a trial in a court of law, often because there is not enough proof that someone is guilty.
13. To carefully check something to see that it is acceptable or accurate.
15. Having equal force but an opposite effect.

1. Someone who studies very hard.
3. Causing worry or fear.
4. Quick and exact either in movement or thoughts.
6. Keep down or stop the growth of something.
7. The ability or time to deal with a situation, especially one that involves a large amount of information or a number of problems.
10. To supply or produce something positive such as a profit, an amount of food or information.
12. Unable to be noticed or felt because of being very slight.
14. Failure to take proper care in doing something.