What is the central idea of this passage? a. man-made lagoons and beaches allow the opportunity to reuse rainwater from reservoirs. b. artificial beaches are found in many cities around the world, especially those close to the coast. c. man-made lagoons and beaches can provide a place for people to surf even without an ocean nearby. d. artificial lagoons are regularly created from old ponds of water that are no longer needed to support wildlife. what would you do if you loved to surf, but lived nowhere near the ocean? well, in wales, a country in great britain, the world's first public artificial wave pool has been built. what was once an aluminum factory has been turned into the longest man-made surf wave in the world, using rainwater from a nearby reservoir to fill the lagoon. the pool is able to produce a 6ft-tall barrel of water that peels for 490 feet and runs for 16 seconds. so, living in a landlocked city doesn't have to keep people from enjoying the water. an artificial beach or lagoon could solve this problem, especially if they are built indoors.