What was an effect of the discovery of the new world in the late fifteenth century?

Why did roosevelt support a “europe first” strategy even though it had been japan that had first attacked the united states?

The map shows latitudes and longitudes of australia. which australian city is located north of the 15°s latitude? perth brisbane melbourne darwin

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