What factor contributed to the placement of the border between north and south korea?

Distance that lewis and clark traveled from st. louis to ft. clatsop near the pacific ocean.

What's erosion? a. the breakdown of rock into smaller pieces b. the removal of weathered products from rock c. a change in rock resulting from exposure to water d. a chemical change in rock that weakens it

What would have happened to portugal’s trade if they had not found a way to sail around the tip of africa