Since the demand for woollen garments is confined only to the colder parts of the globe, woollen textile industry ismuch smaller and less widely distributed than the cotton textile industry. Two-thirds of the world’s woollen mill capacity and production are located in Europe.
Bats use SONAR (Sound Navigation & Ranging).Sonar is a technique that uses sound propagation to navigate, communicate with or detect objects on or under the surface of the water, such as other vessels.