Most cases of black stools are from eating black foods or iron supplements. The most common condition causing black stools is a bleeding ulcer. Black stools caused by blood indicate a problem in the upper digestive tract. Blood in the stool can be detected through a stool test.
Akashi-Kaikyo Bridge, Japan. The Akashi-Kaikyo Bridge, spanning the Akashi Strait, connects the city of Kobe and Awaji Island in Hyogo Prefecture. It is the world's longest suspension bridge, with its central span measuring 1,991m. Its made up of six lanes with a combined length of 3,911m.
Us Map shows location of longest suspension bridges in the United States according to the length of their main span. While Verrazano-Narrows Bridge in Lower New York Bay has the longest suspension bridge with feet 4,260 and number two is Golden Gate in San Francisco Bay with feet 4,200. Print.