O How did interregional communication and trade lead to intensified cultural and biological
exchanges among the peoples of Eurasia and
Africa?
0 How did the Black Death create social disorder?

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:

what the question i might be able to

i believe the correct answer is b.

a. always outside of government control.