Which mountain ranges constitute the Purvanchal (Eastern Hills) ?

By what name is the Brahmaputra known in:

(i) Tibet

(ii) Bangladesh ?

Mention two main features of the Indian Monsoon.

 Mumbai receives rainfall in the summer season while Chennai receives rainfall from October to December. Why ?

Distinguish between the Western coastal plains and the Eastern coastal plains.

Give a single word for each of the following :

(i) The narrow valley lying between the Siwalik range and the Himachal range.

(ii) A salt water lake on the coast.

(iii) The highest peak in peninsular India.

With reference to Nepal, name the following :

(i) Two principal peaks of Nepal

(ii) Two Himalayan ranges bordering the Kathmandu valley.

Name the two rivers which are common to India and Nepal.

Name the two major dams of the river Indus located in Pakistan.

In Bangladesh, waterways are the most important transportation system. Why ?