How are vestibular disorders diagnosed? The inner earâs vestibular organs and the associated nerves and brain centers form a complex system that serves many functions and can be affected by a number of outside systems. A thorough evaluation of the inner ear may therefore require several different kinds of tests.
Birch and tea-leaved willow are the main species of tree found in Icelandic woodlands and shrublands. Birch is the only species of tree to form continuous natural woodlands in Iceland, although the occasional rowan or aspen can be found growing in among the birch trees. Mosses and lichens often abound in forests, both as undergrowth and epiphytes growing on trees.
The high degree of volcanism, along with the world renowned expertise of Icelandic specialists in the field of geothermal energy utilization, enables Iceland to be the world leader the production of this eco-friendly, sustainable and renewable power. Geothermal energy in Iceland is used in diverse ways, including being harnessed for heating and the production of electricity. The energy comes rather cheap. So, in the wintertime, some sidewalks in ReykjavÃ­k (Reykjavik) and Akureyri are heated, and on the 40 km long road between Reykjavik and the International Airport at KeflavÃ­k (Keflavik), the lights on the lamp posts are on the whole night.