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.
was built instead which is the Tsing Ma Bridge. Tsing Ma Bridge is the worldâs sixth largest suspension bridge but the world longest span suspension bridge which carrying both road and rail traffic. The bridge is supported by gravity-anchor in the form of reinforced concrete. It is situated in Hong Kong and it is 2.2km long.