The louisiana purchase

a: nearly tripled the size of the united states

b: improved relations between the united states and britain.

c: set the border between the united states and canada at the forty-nine parallel.

d: nearly doubled the size of the united states.

What role did the alliance system play in preventing austria-hungary and serbia from coming to a compromise settlement?

Why did reagan have the united stars invade grenada

What do most climatologists see as a major cause of rising global temperatures? a. earth's closer proximity to the sun due to its gravitational pull b. greenhouse gases produced by burning fossil fuels c. rising ocean levels caused by melting polar ice sheets d. water pollution cause by industrial waste