How did the policies of european nations lead to revolutions in the american

How can changes in technology or consumer demand make it difficult for people to get jobs? by changing the number or kind of jobs available by making it possible for some people to work fewer hours by making it difficult for people to buy what they want by creating a demand for things that are not available

Wich characteristics make the long ballot ineffective

What would you call a political system that is only meant to last for a short time