Cuba is a command economy that suffered decline in economic growth because of a cut in support from the former soviet union when it collapsed. as a consequence, cuba:

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

answer; people where able to travel across the u.s.a faster than any other mode of transportation,travel time was about a week,from coast to coast