What was the first country to feel the effects of george w. bush's approach to foreign affairs, referred to as the bush doctrine (or the doctrine of preemption)?
afghanistan
china
iraq
panama

the right answer is the third one: turnpikes went short distances to connect markets. turnpikes, also known as toll roads, were very important for trade and transportation (of people, goods and products) in the 19th century, coinciding with the expansion towards the west. they contributed significantly to the economic development of the united states.

d.

the northwest territory became the most densely populated area in the u.s.

which statement explains one of the reasons world war 1 was so much more destructive than earlier conflicts