Sinkhole may exhibit a visible opening into a cave below. In the case of exceptionally large sinkholes, such as the Minyé sinkhole in Papua New Guinea or Cedar Sink at Mammoth Cave National Park in Kentucky, an underground stream or river may be visible across its bottom flowing from one side to the other. Sinkholes are common where the rock below the land surface is limestone or other carbonate rock, salt beds, or in other soluble rocks, such as gypsum, that can be dissolved naturally by circulating ground water. Sinkholes also occur in sandstone and quartzite terrains. As the rock dissolves,
A Little Piece of Ground rewritten with the Palestinian author Sonia Nimer and it was published by Tamer Institute for Community Education. A Little Piece of Ground A Little Piece of Ground is a young adult novel by Elizabeth Laird. The book is about a twelve-year-old boy and his family struggling under the oppression of occupation in Israel/Palestine. It was first published by Macmillan in 2003 and reprinted by Haymarket Books in 2006. In 2003 it was a nominee for the Carnegie Medal and in 2004 won the Hampshire Book Award. The story comes from Laird's experiences in Lebanon during the Lebanese Civil War. The