Which of the following is not a building block of government?

How many people in the world’s economy work in “system d”?

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

Reasons for factor mobility of a combine harvester, cotton, an oil platforn and a woodland