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 Form 3 Geography External Land Forming Processes Online Lessons

Meaning of external land forming processes, denudation and processes of denudation, weathering its agents

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Answer Text:
EXTERNAL LAND FORMING PROCESSES
- Processes operating on the exterior of the earth resulting in the formation of natural physical features.
- Denudation – all processes of destruction, wastage, and removal of parts of the earth surface
- The processes include:
1. Weathering
2. Mass wasting
3. Erosion
4. Transportation
5. Deposition
Weathering
- Mechanical breakdown or chemical decay of rocks “in situ” (without movement) by physical and chemical processes.
Agents of weathering
-The main agents of weathering include:
a) Heat
b) Water
c) Dissolved substances
d) Plants
e) Animals


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