A gel is any liquid (usually) or gaseous medium suspended in a solid three-dimensional mesh which entraps the medium so that it does not flow. By way of (somewhat flawed analogy) think of a giant role of bubble wrap. Its mostly air. But the plastic keeps the air from flowing at a large scale.
Location. Peru is located in the west of South America, and has borders with Ecuador, Colombia, Brazil, Bolivia and Chile. It has sovereignty over 1,285,215 km2 of land and 200 nautical miles of the Pacific Ocean, as well as 60 million hectares of the Antarctic.
The natural setting, on the eastern slopes of the Andes, is in the upper Amazon Basin, with its rich diversity of flora and fauna. A typical visit to Peru includes arrival at the capital city of Lima, a megacity the size of the state of Rhode Island, with approximately one-third of Peruâs population. Interestingly, many people think Lima is a high-altitude Incan city, but it is actually located on the Pacific coast at sea level (Map 4-08). After spending a few days in Lima, one takes an hour-long flight to Cusco, the gateway to Machu Picchu and a worthwhile destination of its own.