Class 7 Geography Our Changing Earth

1. What causes changes on the Earth’s surface?

👉 Natural forces

2. Name the two forces that shape the Earth.

👉 Endogenic and exogenic

3. What are endogenic forces?

👉 Internal Earth forces

4. What are exogenic forces?

👉 External Earth forces

5. Name one endogenic process.

👉 Earthquake

6. Name one exogenic process.

👉 Weathering

7. What is weathering?

👉 Breaking of rocks

8. What is erosion?

👉 Wearing away of land

9. What is deposition?

👉 Laying down of sediments

10. Name agents of erosion.

👉 Water, wind, ice

11. Which agent forms river valleys?

👉 Running water

12. What is a floodplain?

👉 Flat fertile land

13. What is a meander?

👉 River bend

14. What is an ox-bow lake?

👉 Cut-off river bend

15. Which landform is formed at river mouth?

👉 Delta

16. What is a sea cliff?

👉 Steep coastal rock

17. What are sea caves formed by?

👉 Sea waves

18. What is a stack?

👉 Isolated rock pillar

19. Which agent forms sand dunes?

👉 Wind

20. What is a mushroom rock?

👉 Wind-eroded rock

21. Which agent forms glaciers?

👉 Ice

22. What is a glacier?

👉 Moving ice mass

23. What landform does ice create?

👉 U-shaped valley

24. What is a landslide?

👉 Sudden land movement

25. What is an earthquake?

👉 Sudden ground shaking

26. What causes earthquakes?

👉 Plate movements

27. What is a volcano?

👉 Opening in Earth’s crust

28. What comes out during volcanic eruption?

👉 Lava

29. Which force builds mountains?

👉 Endogenic force

30. Which force wears down landforms?

👉 Exogenic force


📌 Quick Revision Trick

👉 Processes:
W-E-DWeathering – Erosion – Deposition

👉 Forces:
E-EEndogenic (inside) – Exogenic (outside)