How did the sumerians solve the problem of flooding

Create irrigation systems to provide water for their fields.

Explanation:

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

explanation:

the president, prime minister, chief justice, speakers and ministers take their oath of office. the oath is taken in bengali