economics discussion questions

I need 75 word minimum responses please for the following:

1.     What are some of the larger issues that Microeconomics attempts to address?  How is this different than what is examined in Macroeconomics? 

2.     What can the science of Microeconomics use as examples of why this matters/how it has been successful? 

3.     Should people be considered "rational" in their approach to making decisions?  Why/Why not? 

4.       Can you think of specific instances in which you yourself may have behaved irrationally, and what were the outcomes of the decisions you made?