Changes in the level, intensity, amount, location, or form of something are known as

What was the historic border between the united states and mexico?

By choosing to resupply fort sumter, abraham lincoln risked a. abandonment of the fort by union soldiers. b. abandonment of the fort by confederate soldiers. c. the appearance of giving in to confederate secession. d. armed conflict with southern soldiers.

How did the actions of tsar nicholas 2 and his wife lead to revolution in russia