Chad
landlocked; Lake Chad is the most significant water body in the
Sahel

Chile
strategic location relative to sea lanes between Atlantic and
Pacific Oceans (Strait of Magellan, Beagle Channel, Drake Passage);
Atacama Desert is one of world's driest regions

China
world's fourth largest country (after Russia, Canada, and US);
Mount Everest on the border with Nepal is the world's tallest peak

Christmas Island
located along major sea lanes of Indian Ocean

Clipperton Island
reef 12 km in circumference

Cocos (Keeling) Islands
islands are thickly covered with coconut
palms and other vegetation

Colombia
only South American country with coastlines on both the
North Pacific Ocean and Caribbean Sea

Comoros
important location at northern end of Mozambique Channel

Congo, Democratic Republic of the straddles equator; has very narrow strip of land that controls the lower Congo River and is only outlet to South Atlantic Ocean; dense tropical rain forest in central river basin and eastern highlands

Congo, Republic of the
about 70% of the population lives in
Brazzaville, Pointe-Noire, or along the railroad between them