What is the difference between commercial and subsistence farming?

What role did the alliance system play in preventing austria-hungary and serbia from coming to a compromise settlement?

Which is the best description of a political campaign tactic during the ele tion of 1828

Which were the most important issues during the presidential election of 2008? a. economic downturn and environmental protection b. two overseas wars and economic downturn c. two overseas wars and campaign spending d. environmental protection and campaign spending