Brazil, Mexico, and Venezuela each have governments which are considered federations. A federation is

What was the purpose of the spanish missions in new spain

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

What are objects called that have value in and of themselves as well as value as a means of exchange? custom commodity money currency simple money