Oral complications caused by radiation therapy to the head and neck include the following: Fibrosis (growth of fibrous tissue) in the mucous membrane in the mouth. Tooth decay and gum disease. Breakdown of tissue in the area that receives radiation. Breakdown of bone in the area that receives radiation.
A landform is any natural formation of rock and dirt, found on Earth. A landform can be as large as a mountain range, or as small as a hill. It can be as large as a continent, or as small as a pond.
Desert landforms. You must understand that a process is what creates a landform. A landform is a distinct feature in a landscape. At the most basic, you must be able to describe the processes that lead to the formation of a rock pedestal and a barchan dune (a crescent shaped sand dune).