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1.
Countries bordering the Atlantic Ocean
2.
Countries bordering the Pacific Ocean
4.
Countries where Spanish is an official language
5.
Countries whose capital city starts with B
6.
Countries with an area greater than 1,000,000 km²
7.
Countries with a population under 1,000,000
8.
Countries with megacities (urban areas with a population over 10 million)*
9.
Countries containing part of the Amazon Rainforest
10.
Countries containing part of the Andes Mountains
11.
Countries on the shore of Lake Titicaca
12.
Countries with mountains higher than 20,000 ft / 6,000 m
13.
Countries with Antarctic territorial claims
14.
Countries bordering France
15.
Countries bordering Brazil
16.
Countries that became independent in the 19th century