Restless Earth exam style starters.

1. 3 physical features which form as a result of fold mountain ranges:
- Valleys - U-shaped caused by glaciers traveling through it, wide valley floor
- Slopes - high and steep, upper slope - snow and rocks underneath, lower slope - grass, tree-line and alpine meadows.
- Snow - because of the high altitude(more on the mountain peaks)

2. Explain the formation of a U-shaped valley:
- U-shaped valleys are caused by glaciers. Glaciers are like a big tube of ice. But the valley is first shaped like a V-shape but that is when the river flows through it(light). So the glacier moves along the valley creating a U shape when friction happens on the sides and the bottom of the glacier making it move, there has to be a huge amount of ice to produce the friction, so it mainly depends on the weight of the ice. The movement comes mainly from the middle of the glacier. It scrapes the sides and floor of the river valley and when the ice melts the valley is greatly deepened, widened and is "U" shaped.