Which principle of the Constitution divides powers between the national government and the state governments? *

Restricting immigrants from entering a country may be based on what belief?  

Statement best describes the main reason behind the establishment of government in the early river valley civilization‘s

The middle east has very limited fresh water sources in the form of rivers such as the nile, jordan, euphrates, and tigris rivers. however, these rivers are only located in a few countries. which country does not have one of these rivers within its borders?