Irritable Bowel Syndrome (IBS) The exact cause of irritable bowel syndrome (IBS) isn't known. But health experts believe that faulty communication between the brain and the intestinal tract is one cause of symptoms. In some people, this miscommunication causes abnormal muscle contractions or spasms, which often cause cramping pain.
Solid Wood Floor. Solid wood flooring is exactly what the name implies: a solid piece of wood from top to bottom. The thickness of solid wood flooring can vary, but generally ranges from 3/4â to 5/16â. Solid wood can be used in any room that is above grade (above ground).
The Earth is made out of many things. Deep inside Earth, near its center, lies Earth's core which is mostly made up of nickel and iron. Above the core is Earth's mantle, which is made up of rock containing silicon, iron, magnesium, aluminum, oxygen and other minerals. The rocky surface layer of Earth, called the crust, is made up of mostly oxygen, silicon, aluminum, iron, calcium, sodium, potassium and magnesium. Earth's surface is mainly covered with liquid water and its atmosphere is is mainly nitrogen and oxygen, with smaller amounts of carbon dioxide, water vapor and other gases.