Plains are large stretches of flat land. They are, generally, not more than 200 metres above mean sea level. Some plains are extremely level. Others may be slightly rolling and undulating. Most of the plains are formed by rivers and their tributaries. The rivers flow down the slopes of mountains and erode them. They carry forward the eroded material. Then they deposit their load consisting of stones,sand and silt along their courses and in their valleys. It is from these deposits that plains are formed.Generally, plains are very fertile. Construction of transport network is easy.Thus, these plains are very thickly-populated regions of the world. Some of the largest plains made by the rivers are found in Asia and North America. For example,in Asia, these plains are formed by the Ganga and the Brahmaputra in India and the Yangtze in China.Plains are the most useful areas for human habitation. There is great concentration of people as more flat land is available for building houses, as well as for cultivation.Because of fertile soils, the land is highly productive for cultivation. In India too,the Indo-Gangetic plains are the most densely populated regions of the country.
Many of us know India either by the name of "India" or "Bharata". Some who have a little interest in history, also, know India by the name of "Bharatvarsha" or "Aryavarta". But in past immemorial, India was known by several different names in several different eras and societies and some of those names are listed here: Jambudvipa Jambudvipa is the ancient name of India which literally means “the land of Jambu trees” and can be found in numerous religious texts of various Sanathan Dharma ’s offshoots viz. Hinduism, Buddhism, and Jainism. The Jambu or Jambul means Indian blackberry and dvipa means the continent. Nabhivarsha In Jain texts, India was known as Nabhivarsha, the country of Nabhi. Nabhi was a Chakravarti King and father of first Jain thirthankara Rishabhanatha. In ancient Hindu texts, a different definition for the Nabhivarsha is given. According to Hindu texts, here Nabhi means “navel of the Brahma” and varsha means “the country.” Arya...
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