A retreating glacier A kettle lake is a shallow, sediment-filled body of water in a glacial outwash plain. It forms as a result of blocks of ice which have calved and become partly or fully submerged in the sediment dropped by meltwater flowing from the glacier. Another landform called a kettle hole is formed by sudden drainage of an ice-dammed lake.
A shallow ephemeral lake in the Gawler Ranges, South Australia, is at the centre of what - now largely eroded - estimated 90 km (56 mi) diameter impact crater?
A state of Australia, one of the world's biggest waterfalls, a London railway station, Africa's largest lake and a large public park in Hong Kong are all named after whom?
The Great Salt Lake, in the north of the US state of Utah, is the largest salt lake in the western hemisphere. What is the approximate average salinity of its main basin, Gilbert Bay?
