Glaciation


 * __ Glacier​ __**



**__There is...__** -The Balto ro Glacier (Karakoram mountains, Pakistan) -Perito Moreno Glecier (Argentina) -Aletsch Glacier (Switzerland, European Alps) ** __The features of...__ ** **The glacial erosion **

*Valleys will be U shaped and tend to be straight, as opposed to fluvial valleys which in upland areas are V shaped and meandering.


 * Hanging valleys will sometimes result from overdeepening of a glacial vally.


 * A giant version of this is "Crag and tail" like castle rock in Edinburgh.

 ** The glacial deposition **
 * Glacial till deposits.


 * Meltwater cut valleys.


 * Drumlins.

 **__Why are glaciers important to humans?__**

The glaciers are very important to humans because it keeps the earth cool enough. If there is no glacier on the earth, the earth could be really hot because of the global warming. But the glaciers started to melt so many islands can be flooded.


 * __What is an ice age?__ **

An ice age is a natural system. It implies the presence of extensive ice sheets in the northern and southern hemispheres.