- A glacier (US: /‘gle???r/; UK: /‘gl�si?r, ‘gle?si?r/) is a persistent body of dense ice that is constantly moving downhill under its own weight. A glacier forms where the accumulation of snow exceeds its ablation over many years, often centuries. It acquires distinguishing features, such as crevasses and seracs, as it slowly flows and deforms under stresses induced by its weight. As it moves, it abrades rock and debris from its substrate to create landforms such as cirques, moraines, or fjords. Although a glacier may flow into a body of water, it forms only on land and is distinct from the much thinner sea ice and lake ice that form on the surface of bodies of water.
- 9/11 Commission Report (Wikipedia)
The 9/11 Commission Report, officially the Final Report of the National Commission on Terrorist Attacks Upon the United States, is the official report into the events leading up to the September 11, 2001 terrorist attacks. It was prepared by the 9/11 Commission, chaired by former New Jersey governor Thomas Kean, at the request of U.S. President George W. Bush and Congress.