The term “surface irrigation” refers to systems that deliver water to crops using a gravity-fed, overland flow of water. Surface irrigation conveyance and distribution systems are among the first engineering innovations of humans, dating back to more than 6,000 years ago.
lift irrigation systemExplanation: In lift irrigation system mechanical means are used to supply water to the crops for irrigation. This is quite the case of wells where by mechanical means water is supplied for irrigation.
Flood irrigation supplies water to a field through pipes or ditches. Water flows over the ground and through the crop. Levees and gates are often used to control water depth. In Missouri, flood irrigation is commonly used in rice fields by cascade or side-let methods.
The 3 Tamil Kings, or the 3 authorised by Heaven, or World of the 3, essentially called Moovendhar, suggests the triad of Chola, Chera and Pandya who ruled the legislative issues of the antiquated Tamil nation, Tamilakam, from their three nations or Nadu of Chola Nadu, Pandya Nadu and Chera Nadu in southern India.
On 26 January 1950, it was formed as Madras State by the Government of India. As a result of the 1956 States Reorganisation Act, the state’s boundaries were re-organized following linguistic lines. The state was finally renamed Tamil Nadu on 14 January 1969 by C.N. Annadurai, Chief Minister.
According to Hindu legend, Tamil or in personification form Tamil Thāi (Mother Tamil) was created by Lord Shiva.
The Mughals and Their Empire: The name Mughal derives from the term ‘Mongol’. … Babur was driven from Farghana by the warring Uzbeks. … Babur’s successor, Nasiruddin Humayun (1530-40, 1555-56) expanded the frontiers of the empire, but lost it to the Afghan leader Sher Shah Sur.
Answer: The Mughals were descendants of two great lineages of rulers. From their mother’s side they were descendants of Genghis Khan, ruler of the Mongol tribes. From their father’s side they were the successors of Timur, the ruler of Iran, Iraq and modern-day Turkey.
The methods used by the Cholas for irrigation were (a) canals, (b) wells and (c) tanks to collect rainwater.
Qualifications necessary to become a member of a committee of the sabha in the Chola Empire: (i) Members of the sabha should be owners of land from which land revenue is collected. (ii) They should have their own homes. (iii) They should be between 35 and 70 years of age. (iv) They should have knowledge of …
