The Tigris and Euphrates rivers in Mesopotamia were erratic. The rivers would flood or drought unpredictably and even shift their courses. Also, the Tigris had high banks which meant water irrigated from it would have to be drawn upward from the banks.
The Nile on the other hand followed a consistent annual inundation that brought water and fertile silt deposits right onto the crop fields. Egyptian farmers simply had to wait for the flood to recede some and plant their crops; the water and nutrient soil was already provided by the River.
The correct answer to this open question is the following.
The Preamble can be used to evaluate how the federal government is doing its job in that the Preamble of the United States Constitution clearly and succinctly states the standard that the federal government needs to show and perform to govern the country. The Preamble clearly states that the government must maintain the union, establish justice, promote peace and welfare, and promote the liberties of the citizens. So that is the reference and the standard the US officials must follow to perform their jobs. This is a great responsibility.
Answer:
1768 to 28 May 2008. were ruling family in nepal
