Coral reefs are generally divided into 4 classes, according to CORAL: fringing reefs, barrier reefs, patch reefs and atolls. Fringing reefs tend to be the most often noticed reef and increase in the vicinity of coastlines. Barrier reefs vary from fringing reefs in that they are divided in the coastlines https://blen86420.answerblogs.com/13424127/the-smart-trick-of-zuby-that-no-one-is-discussing