A pretty cool history fair project would be the history of Halloween and it's origins since it's a most here...I'd be pretty cool
Answer
Mesopotamia
Explanation
Mesopotamia is a region between the two rivers Tigris and Euphrates in western Asia. They depended on annual flooding to produce a constant surplus of food because the floods brought silt which was very fertile to the lands and it contained the minerals required by the soil and the nutrients which helps the plants to be more productive.
Also in Egypt floods along the river Nile helped farmers in good production of plants because it carried black soil to their farms which was very fertile.
I think you forgot to add the drop down menu
Answer:
It is described as a separation procedure that separates two immiscible liquids. Pouring away the clear topmost layer of liquid accomplishes this. Separation of a mixture of oil from water is an example of decantation.
