Trabajo escolar

The island of Puerto Rico is almost rectangular in shape, and is the smallest and the most eastern island of the Greater Antilles . Its coasts measures approximately 580 km, and if the adjacentislands Vieques and Culebra are included the coast measures approximately 700 km. To the north and south seas capes measure 8.525 m for the Grave of Puerto Rico and 5.000 m for the Grave of Tanner. Inaddition to the principal island, the Commonwealth includes: Vieques, Culebra, Culebrita, Palomino (known by some by the Spanish Virgin Islands), Mona, Monito and various others isolated islands. Deepoceans waters fringe Puerto Rico. The Mona Passage, which separates the island from Hispaniola to the west, is about 75 miles (120 km) wide and more that 3,300 feet (1,000 meters) deep. Off the northerncoast is the 28,000 feet (8,500 meters) deep Puerto Rico Trench, and to the south the sea bottom descends to the 16,400 feet (5,000 meters) deep Venezuelan Basin of the Caribbean.
Ecology
Theterritory is very mountainous (cover 60%), except in the regional coasts, but Puerto Rico offers astonishing variety: rain forest, deserts, beaches, caves, oceans and rivers. Puerto Rico has three mainphysiographic regions: the mountainous interior, the coastal lowlands, and the karst area.
The mountainous interior is formed by a central mountain chain commonly known as the Cordillera Central ,extending across the interior of the island, from Mayagüez to Aibonito, which transects the island from east to west. These mountain ranges are La Cordillera Central, La Sierra de Cayey, La Sierra deLuquillo, and La Sierra Bermeja.
The largest mountains are Cerro La Punta (1,338 m) in Jayuya; Rosas (1,267 m) found between Jayuya and Ciales, Guilarte (1,205 m) in Adjuntas, Tres Picachos (1,204 m)in Jayuya, and Maravilla (1,182m) in Ponce. Toward to the northeast is Sierra de Luquillo, whose highest peaks are: Toro Hill (1,074 m) found between Río Grande, Naguabo and Las Piedras, and El...