Algeria.
American Samoa (United States of America)
Burkina Faso.
Cape Verde.
Cook Islands.
Faroe Islands (Denmark)
France (Metropolitan) French Polynesia. Wallis and Futuna.
Gambia.
These are some of the countries in the Western Hemisphere.
Answer:
On a geologic map, if the contacts between sedimentary rock units form a bull’s-eye pattern of concentric circles, with the oldest unit in the center, the underlying structure is a syncline.