Which of the following is the best example of a nation-state? Belgium
Azerbaijan
Latvia
Denmark
Romania

in 1803 the louisiana purchase took place, doubling the size of the country. by 1840 almost 7 million americans had migrated westward in hopes of securing land and being prosperous. the belief that settlers were destined to expand to the west is often referred to as manifest destiny.

explanation:

that would be the steamboat because none of the other things are forms of transportation

equal area projections

equal-area projection. a projection in which regions on the earth's surface that are of equal area are represented as equal.