Entre as atividades desenvolvidas pelos sumérios ao fundarem cidades na mesopotâmia estava(m):

A) a criação de leis escritas
B) a pratica de tecelagem
C) a produção de artefatos de guerra
D) a mumificação de corpos
E) as técnicas de irrigação e fertilização do solo

The correct option is E

Explanation:

The main economic activity was irrigated agriculture, with cereals and dates among its main products. It also had an important craft activity, which had very high artistic levels. Barter trade with other areas of the Near East was also developing

the mongolian invasion of china and central asia resulted in a disruption of the silk road as the chinese garrisons lost support from the chinese kingdoms which fell under the mongols. however, as the mongols established a formal dynasty in china, the successors of genghis khan restored the garrisons along the silk road allowing the safe travel caravans again.