Who wanted to keep the Jewish refugees out of the USA

Herbert Hoover

Explanation:

He interpreted immigration legislation to prohibit "those likely to become a public charge" to even include immigrants capable of working

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