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A waterfall is an erosional fluvial landform, characterisedby a steep drop in the river. It is formed in the upper course when verticalerosion forms a V-shaped valley. For instance, High Force is the UK’s la...

Stacks and stumps form when waves erode a weakness in a headland using abrasion or attrition. The crack widens until a cave is formed. Waves continue to erode the back of the cave until eventually it pushes ...

Migrants increase the tax base (the number of people paying taxes), which is an economic advantage.They can also stabilise the birth rates of countries with ageing populations, because migrants are very ofte...

A waterfall, labelled A in resource 1, normally forms in the upper valley of rivers where alternating bands of hard and soft rock occur along the river bed. The bands of softer rock are eroded at a faster ra...

Trade is vital for economic development. Ethiopia is one of the least developed countries in the world. The country's main exports are mostly primary products such as coffee, flowers and vegetables. The coun...