What new technology helped to change life in the west?

Canals, stagecoaches, and railroads made it possible for thousands of people to settle the West. Securing the land often meant defending the chosen spot against Indian attack; advances in gun design swayed the battles in favor of the white settlers.

Explanation:

Canals, stagecoaches, and railroads made it possible for thousands of people to settle the West. Securing the land often meant defending the chosen spot against Indian attack; advances in gun design swayed the battles in favor of the white settlers.

Explanation:

interdependence is when all participating groups and individuals depend on each other. if you depend on one anothers goods, you end up trading in order to get the items you're looking for. (for ex: if i have food and you have water, we trade in order to depend on each other to live)