Answer: Valley
Explanation: Valleys are among the most common features in the world. They are a stretch of land that lies between hills and normally has a river running through it. In addition, valleys are typically formed by erosion which is the gradual breakdown of materials.
The answer is A. 4
About 4 million households in US have a net worth in excess of 1 million. And from that 4 million, only about 1800 of them that excess $ 1 billion in net worth ( accordint to data in 2016)
The Vice President's Job: The only duty the U.S. Constitution assigns the Vice President is to act as presiding officer of the Senate. But the Vice President also serves as ceremonial assistant to the President and is an important part of the President's administration.
Judicial Review is the Court's Examination of the Constitutionality of the actions of Congress and the President (and the court's right to nullify what the other branches of government have done if they find it unconstitutional). This process was first established by the Marbury v. Madison Supreme Court Case.