Why is regional cooperation important? Minimum 6 sentences--2 reasons with support

answer; /// i believe that the correct answer is (divison of labor);

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:

b. second continental congress

food and resources were plentiful.

women were encouraged to marry later in life so they could work in factories.