Give a couple examples of “white collar” jobs

Market researchers, Accountants, & Financial Managers

a. because the u.s. was the leading with the most technology, economy, etc. also was teamed with other allies witch boosted the economy and materials to improve technology and use it.

"a government in which power is divided between state and national levels". federalism is a system of government in which entities such and state and province, share power with the national government.