WORLD CIVILIZATION

Detailed explanation-1: -To irrigate their land, they dug out large storage basins to hold water supplies. Then they dug canals, human-made waterways, that connected these basins to a network of ditches. These ditches brought water to the fields. To protect their fields from flooding, farmers built up the banks of the Tigris and Euphrates .

Detailed explanation-2: -The earliest known systems of irrigation began in 6000 BC in Egypt and Mesopotamia.

Detailed explanation-3: -There were two types of agriculture: Dry agriculture without irrigation, where people mostly cultivated cereals and relied on rainfall, which was primarily practiced in the hill country of upper Mesopotamia and the Levant. Irrigation agriculture, which was centered in the alluvial plains of Lower Mesopotamia.

Detailed explanation-4: -Ancient Mesopotamians, including the Sumerians, Akkadians, Babylonians and the Assyrians, relied on the Tigris and Euphrates Rivers not only to water their fields but also for clean water for domestic uses.