I believe the answer is: knowing your purpose
By knowing your purpose, you could determine the type of approach that would be best for the presentation, the target audience that you should seek and the type of material you could give in order to make sure that the audiences receive the full message of the presentation.
Advantage on the left and disadvantage in the right hope this helps :)
Decreases increases i believe is the answer
B. It is the first written body of laws used to organize society.
1763 ended Seven Years War, 1783 ended war for independence
