The agricultural revolution led to the need for organized a. greenhouse gas reform. b. technological reform. c. government. d. pest control.

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:

it proved indian land claims were unjustified.

because they can and they wanted to.

it reintroduced the two-party system.