Answer:
Manifest Destiny encouraged westward explansion.
Step-by-step explanation:
Manifest Destiny was an idea in which Americans believed in 1845. This idea encouraged the America's westward migration and made that migration more likely.
American people were traditionally related to English civilization. They felt superior to other people living in North America. They believed that this expansion across the entire North American continent was inevitable and justified. They believed that God has predestined this migration and wanted to give the fertile land of America to these people. So, people were encouraged to travel to the west much more quickly.