Please answer the following questions.

PLEASE ANSWER THE FOLLOWING QUESTIONS. ANSWERS SHOULD BE AT LEAST 8 SENTENCES. 
1)  Define, compare, and contrast competitive advantage with sustainable competitive advantage 
2) Provide real-world examples of companies with a competitive advantage or sustainable competitive advantage?
3)  Why are objectives set for all levels of the organization?   Give examples of these related, but different objectives 
4) Discuss – bargaining power of suppliers — and give examples
5)  Discuss rivalry among established firms in the industry — and give examples.