1. Unit 2 The relief

2. The four spheres of the Earth

8. Continental drift

10. The main volcanoes

11. Tectonic boundaries

12. Volcanoes

13. Devil’s tower

14. Mount Etna

17. Japan

18. Haiti

19. Tectonic plates’ action
8,848 metres high

20. The Himalayas

21. Erosion
Wind
Monument Valley
River Grand Canyon

22. Sea

23. Human activity
Deforestation
Progress

24. Agriculture

25. Progress

27. Relief features
Kilimanjaro, north of Tanzania

28. The Rocky mountains

29. Bisons in the Great Plains

30. A plateau

31. Reservoirs in the sedimentary basin of the River Ebro

32. Santa Barbara valley. Asturias