May I ask for an explanation to each question. Thank you!

TRUE OR FALSE

1.In negative personal obligations, liability arises when one does what is prohibited.

2.In negative personal obligations, not doing an act is the act of performing the obligation.

3. Fortuitous events as a cause of non-fulfillment of an obligation excuses the obligor from being liable.

4. As a rule, there is no delay unless there is either notarial or judicial demand for the fulfillment of an obligation.

5. When there is delay committed by both the parties to an obligation, there is mora solvendi.

6. Reciprocal obligations give rise to mutual obligations.here is mora solvendi.

7. Deceit is a manifestation of the intentional evasion to perform an obligation.

8. There is negligence when the necessary degree of diligence is not displayed in the performance of an obligation.

9. When there is criminal liability, there is also, civil liability.