Indian Civil Services Examination Handbook/Geophysical phenomena

Cyclone
The recent cyclone on east coast of India was called 'Phailin'. How are the tropical cyclones named across the world? Elaborate. (100 words) [2013]

Tropical cyclones are largely confined to South China Sea, Bay of Bengal and Gulf of Mexico. Why? (150 words) [2014]

Others
Bring out the causes for more frequent occurrence of landslides in the Himalayas than in the Western Ghats. (100 words) [2013]