1. Relief

2. The Earth’s crust is not smooth, but shows relief. The Earth’s crust is not smooth, but shows relief. Relief can be defined as: height variations in the landscape. Relief can be defined as: height variations in the landscape.

3. Relief may be roughly categorised in 4 ways: Relief may be roughly categorised in 4 ways: 1. High mountain range 2. Low mountain range 3. Hills 4. Lowlands

4. High mountain range – The Rocky Mountains

5. Low mountain range in the Black Forest (Germany)

6. Hills in South Limburg

7. Lowlands in South Holland

8. An area without any significant relief is a plain. An area without any significant relief is a plain. If the area is lower than 500 m, it is called a coastal plain If the area is lower than 500 m, it is called a coastal plain Above 500 m, it is called a plateau. Above 500 m, it is called a plateau. The Tbetan plateau in the Himalayas is no less than 5000 m high. The Tbetan plateau in the Himalayas is no less than 5000 m high.