HELP What circumstances have led to the dominant position of the United States in the global economy?

Availability of natural resources, a skilled labor force, advance technology and a stable political system.

Explanation:

Availability of natural resources, a skilled labor force, and a stable political system etc are circumstances that have led to the dominant position of the United States in the global  economy. The advancement of technologies in every field has a huge contribution for enhancing the economy of United States of America. America is a big country with plenty of natural resources that is used as a raw material for producing different products which can be sold at good profit. The policies of the government contributes a major role in the advancement of economy.

sorry i really dont know

d) a week

because the land run of 1889, although not without precedent in the history of the west, further, their men were aboard the first trains, ready to jump off and begin staking their claims. oklahoma city, edmond, and guthrie were all so affected.