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How internal and external forces impact on landscape

7 Slope Development. How internal and external forces impact on landscape External forces that shape the landscape over time . Chapter 7: Slope Development. External forces Shape landscape over time. Chapter 7: Slope Development. Earth’s surface Changes and evolves over time by:

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How internal and external forces impact on landscape

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  1. 7Slope Development • How internal and external forces impact on landscape • External forces that shape the landscape over time

  2. Chapter 7: Slope Development • External forces • Shape landscape over time

  3. Chapter 7: Slope Development • Earth’s surface • Changes and evolves over time by: • Volcanism • Tectonic uplift • Denudation • Subsidence

  4. Chapter 7: Slope Development • Physical processes shape the Earth’s surface • Rivers • Winds • Mass movement • Glaciation

  5. Chapter 7: Slope Development • Mechanics of a changing landscape • Weathering • Mechanical • Biological • Chemical

  6. Chapter 7: Slope Development • The cycle of landscape change • Three stages: • Youthful = high relief, rugged • Mature = rounded landscape • Old = landscape is almost flat and it’s the lowest level of land surface, i.e. it’s base level

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