Geography

1. Spring water— E.g. Thames in England 2. Lake — E.g. Lake Victoria. 3. Melted water of glaciers— Rhone in France. Note that running water performs three functions: It erodes, transports and deposits materials.

This simply means mass movement of water over the surface of the earth, which may be either as a result of streams, rivers or runoff water during rainfall.

They are used to regulate the flow of rivers They serve as a source of water supply. They help in the beautification of our natural environment They also serve as tourist attraction centres. They provide valuable supplies of fresh water fish. They also serve as fertile alluvium deposit for agricultural purposes They help to moderate …

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a. Cirque lakes which are caused when glacier leaving a mountain hollows on top of the mountains e.g. Lake Ullswater b. Rocks hollow lakes are formed when valley glaciers scoop out hollows on the surface.

These are lakes caused by the actions of volcanoes and they are: a. Lava – blocked lake b. Crater lakes e.g. Lake Oregon in USA. c. Caldera lakes etc.

Lakes caused by depositional agents are: a. Lakes caused by landslides: These are formed when landslides block river valleys thus forming dam e.g. Lake Gormire in Yorkshire. b. Lakes formed by glacial deposition such as moraine-dammed lakes e.g. Lake Plateau of Meck Lesbury in Germany. c. Lakes formed as a result of river deposits, which …

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