How would you use the concept of levels of processing to improve your memory for material you learn in your introductory psychology course?

The following questions are:1. How might the notion of mood-congruent memory explain the difficulty that depressed people often have in getting rid of their depressed mood?2. How would you use the concept of levels of processing to improve your memory for material you learn in your introductory psychology course?3. Why should we be wary about the accuracy of eyewitness testimony?4. What does the case of H. M. indicate about the role of the hippocampus in memory?