Which was part of Sumerian farming and trading? Select all correct answers.

'Levees held back the annual floods of the Tigris and Euphrates Rivers.'

'Surplus barley and wheat could be traded for other things.'

'Lumber, stone, and gold produced in Sumer could be traded for food.'

Ineed this asapwhich practice is most likely to have been supported by conservatives in europe in the 1800s? a. all citizens were granted voting rights and allowed to apply for government jobs. b. a monarch made key political decisions based on input from advisors. c. the people elected the national leaders. d. national leaders and laws relied on legitimacy from the people.