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The focus in this question is the degree to which enhanced energy scarcity will effect politics on a global level. It is important to include a number of examples, such as Russian control over gas reserve...

Corrie's are the starting point of a glacier where snow flakes collect in a hollow. As more snow falls the flakes compact and over time firn is formed. Pressure builds and it will eventually become glacia...

Wave cut platforms are created as a cliff retreats, due to weathering at the top of the cliff and sea erosion at the base of the cliff. Coastal erosion creates a wave-cut notch at the base of the cliff, a...

1) As the river reaches the mouth, it has a large discharge and he river channel is deep and wide. The valley is now wide and flat. T...