Surface water which included rivers, lakes and open canals.
Ground water from wells.
Rain water which was seasonal during rainy season. They used to collect water in tanks and rain containers. Major crop production like rice and corn grow only during rainy season.
Historical Cycle or sometimes a recurring theme
<em>The answer is </em><em>B</em><em>.</em>
<em>They needed more land for growing populations.</em>
Racism and didn't speak the language was different
More citizens protested against the soviet government
