impact basin

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Secret Service Agent Listens To Earpiece

Secret Service Code Names of 11 U.S. Presidents

Close up of books. Stack of books, pile of books, literature, reading. Homepage 2010, arts and entertainment, history and society

12 Novels Considered the “Greatest Book Ever Written”

David Cameron. President Barack Obama and Prime Minister David Cameron of the United Kingdom talk during the G8 Summit at the Lough Erne Resort in Enniskillen, Northern Ireland, June 17, 2013

What’s the Difference Between a President and a Prime Minister?

The Colosseum, Rome, Italy. Giant amphitheatre built in Rome under the Flavian emperors. (ancient architecture; architectural ruins)

New Seven Wonders of the World

Globe South America, map

What’s the Difference Between Hispanic and Latino?

Groups of depositors in front of the closed American Union Bank, New York City. April 26, 1932. Great Depression run on bank crowd

Causes of the Great Depression

United States elections portal page linking to each election interactive

A History of U.S. Presidential Elections in Maps

impact basin

landform

Learn about this topic in these articles:

meteorite craters

In meteorite crater: The impact-cratering process
Craters with megaterraces are called impact basins.
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