1. Which of these led to a money-based economy and the rise of cities? the revival of trade
O Viking invasions
the rise of the bourgeoisie
o the manorial system

answer; /// the correct answer is evidence of the olmec civilization has been found in southern american in a hot steamy forest, archaeologists have found earthen artifacts at several sites that were evidence of the olmec civilization. these   artifacts were mounds,courtyards and pyramids build of stones, also on top of the mounds were many monuments made of stone, some of these stone structures are very large, they weigh as much as 44

b. the 200th birthday of the united states