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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

What mountains did the first transcontinental railroad cross

An italian trader bought merchandise in china and now wants to return home with it. however, he doesn’t want to return via the silk road. choose all the spots on the route he can take to reach italy.