Distribution of Oceans and Continents | Chapter 4 | Class 11 | Social Science | Geography

Questions

1. Wegner’s theory was proposed in

2. The super-continent from which all landmasses of the world have formed is

3. The volcanic centres are called

4. Periodical change in the position of magnetic pole is

5. The process in which one plate over-rides the other and the over-riden plate slips down into the mantle and is absorbed is called

6. The northern continent broken from pangaea is

7. The southern continent broken from pangaea is

8. Who presented a map using computer programme to find best fit of Atlantic margin?

9. The earliest marine deposits along the coastline of either S.America or Africa are of

10. Rich placer deposits of gold occur in

11. Which one is the force for drifting?

12. When was the possibility of convection currents in the mantle portion discussed?

13. The ocean floor may be divided into how many divisions?

14. Which one is the major division based on the depth as well as on the forms of relief?

15. Which division lies between continental shores and deep sea basins?

16. The second group of deep sea basin lying between the continental margins and mid-ocean ridges is known as

17. An interconnected chain of mountain system is formed by

18. Who collected the ideas about plate tectonics?

19. A plate is a portion of

20. The earth’s lithosphere is divided into major plates:

21. Which one is the minor plate?

22. The spreading boundaries are termed as

23. The collision boundaries are the result of

24. How many types of forces work on a moving plate?

25. The driving force includes

Index of Questions