(i) The National Ayush Movement scheme is implemented by the central government.
(ii) Its main aim is to save and extend the life of many medicinal herbs that grow only in the forest.
(iii) This scheme is carried out with 60:40 shares from the central and state governments

(i) River Cauvery is the third largest river in India. Its length is 765 km.
(ii) Cauvery passes Thiruchirapalli, Tanjavur, Srirangapattinam, Kumbakonnam.
(iii) The dams constructed across Cauvery in Tamil Nadu are Mettur Dam, Kallanai.

The productivity of rice - 1965 - 66 - 1409 kgs per hectare.
1975 - 76 - 2372 kgs per hectare.
1985 - 86 - 2712 kgs per hectare
2014 - 15 - 4429 kgs per hectare
In the past 50 years, the productivity of paddy has increased more than three times.

(i) The Union Water Board is constantly monitoring the level and nature of ground water.
(ii) This continuous monitoring has categorized the Panchayat Union in terms of the amount of groundwater used.

1. Rain Fall
2. Water Facility
3. Weather
4. Marketing

(i) Food crops: Paddy, Maize, Ragi, Cumbu
(iii) Non-food crops: Coconut, Cotton, Coffee, Tea, Sugar cene.

(i) The term virtual water was introduced by Tony Allen in 1990.
(ii) The water consumed in the production process of an agriculture or industrial product has been called the virtual water.
(iii) It is a hidden flow of water when food or other commodities are traded from one place to another.
(iv) For instance it takes 1340 cubic meters of water to produce one metric ton of wheat.
(v) That is, if one metric ton of wheat is exported to another country, then, it means that 1340 cubic metre of water used to cultivate this amount of wheat is also being exported.
(vi) India is the largest global freshwater user .
(vii) India has been the fifth largest exporter of virtual water in the world.

(i) All cultivated crops can be classified as food crops in non-food crops.
(ii) 57% of the total land under food grains cultivation is irrigated.
(iii) In 2014-15, 59 percentage of food crops and 50 percentage of non food crops were irrigated in Tamilnadu.
(iv) Paddy cultivation is carried out at a large scale of 30 percent cultivated land area and other food crops in 12 percent area.
(v) Millets are cultivated in a very low percentage of area.
(vi) Cholam cultivation in 7 percent land area, cumbu in one percent and ragi in 1.7 percent.
(vii) Millets occupy 6 percent in the year 2014 - 2015.
(viii) Coconut farming leads in non-food crops (7% land). Manila is grown in 6% and cotton is 3% if the cultivated land.

(i) North east monsoon is a major source of water for Tamil Nadu.
(ii) The northeast monsoon rains are stored in reservoirs, lakes, bond and wells for cultivation.
(iii) Conventional water bodies like lakes, ponds and canals provide water for agriculture in Tamil Nadu.
(iv) 2,239 canals run through Tamil Nadu covering a length of 9,750 km.
(v) There are 7,985 small lakes, 33,142 large lakes, 15 lakh open wells and there are 3,54,000 borewells in the state where agriculture is carried out with the help of these water resources.