In economics , insufficient amounts of resources to meet the demand is called

a) opportunity cost

b) scarcity

c) resource management

d) abundance

Which native american tribe allied with the spanish?

Public opinion is difficult to define

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