Kaolin, Granite, Marble, and Forests.
The Potomac River and the Atlantic Ocean.
natural borders
Democratic and Republican parties
The natural borders that icolate china are the Himalayins, the yellow sea, and all the deserts.
A geographer's pen. There are no natural borders or boundaries.
kansas
timber rum trees cotton
Lake Erie forms the entire north border. The Ohio River forms the entire south border. There are no natural borders on the East or West borders of Ohio.
About one-third
The Chattahoochee River forms Georgias's southwestern border.
Most of the borders of the U.S. are marked by oceans; the next most frequent natural barriers are rivers.