Define or give the meaning of the following:

1. obligation

2. quasi-contract

3. compliance in good faith

4. wrong

5. solutio indebiti

1. What are the essential requisites of an obligation? Give an example to illustrate them.

2. Why are obligations under the Civil Code a juridical necessity? Explain.

3. What are the elements or requisites in order that a person may acquire a right of action in court against another to enforce the performance of the latter's obligation?

4. May a person incur obligations even without entering into any contract or voluntary agreement? Explain.