Why was labor reform so important

What did the incas accomplish? a. written language b. formalized religion c. conquest of the western south america d. formalized government

When and why did the united states enter world war 2

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