Geomorphology (landforms, earth's interior)

Discuss how the changes in shape and sizes of continents and ocean basins of the planet take place due to tectonic movements of the crustal masses.

How are the fjords formed? Why do they constitute some of the most picturesque areas of the world?

Describe the characteristics and types of primary rocks.

Why is India considered as a subcontinent? Elaborate your answer.

Discuss the geophysical characteristics of Circum-Pacific Zone.

How does the Juno Mission of NASA help to understand the origin and evolution of the Earth?

Why are the world's fold mountain systems located along the margins of continents? Bring out the association between the global distribution of fold mountains and earthquakes and volcanoes.

Explain the formation of thousands of islands in the Indonesian and Philippines archipelagos.

(a) What do you understand by the theory of 'continental drift'? Discuss the prominent evidences in its support. (100 words) (b) The recent cyclone on east coast of India was called 'Phailin'. How are the tropical cyclones named across the world? Elaborate. (100 words)