Central America is a long and narrow strip of land which is located between two bodies of water and which connects two pieces of land - we call such a formation an "isthmus" - this is the correct answer.
The Suez canal is also such an isthmus and so is Manila, the capital of the Philippines.
<em>Mount St. Helens in the USA, Mount Fuji in Japan and Mount Pinatubo in the Philippines.</em>
Antarctica has the smallest population